[DFTB-Plus-User] ​ Failure in diagonalisation routine ZHEEVR for Li-S systems

Wu, Qisheng qisheng_wu at brown.edu
Tue Nov 22 05:24:28 CET 2022


Dear Bálint,

Thanks a lot for this explanation. I will definitely look more into tuning
the compression radius during parameterization.

I found that the problem can be solved by setting Li = "s" in
the MaxAngularMomentum black for calculations with the DFTB+ 22.1 code. I
used to set Li = "p" since Li was fitted with a Basis set of "2s2p", which
is the only option available in MS. I am not sure which setting is more
appropriate. Sorry for my poor understanding of this part. I appreciate it
if you can point it out.

I also tuned between S = "p" and S = "d" in the MaxAngularMomentum black.
Here are some comparisons of the optimized lattice constants and bulk
modulus of Li2S bulk:
----------------------------------
##settings                                       # lattice constant (a)
    # bulk modulus
DFTB+ 22.1, Li = "s", S = "p"           5.682 angstroms             46.6 GPa
DFTB+ 22.1, Li = "s", S = "d"           5.651 angstroms             59.4 GPa
DFTB+ 22.1, Li = "p", S = "d"           not working, as I mentioned....
DFTB+ at MS, Li = "p", S = "d"           5.613 angstroms             62.0 GPa
Ref: Materials Project data               5.720 angstroms             40.0
GPa
-----------------------------------

The skf parameter files are all same as before (see my previous message).
It is seen that with Li = "s" and S = "p", the lattice constants and bulk
modulus of Li2S bulk are well reproduced through calculations with the
DFTB+ 22.1 code. But it does not give the correct Li-S bond distance in the
Li2S molecule (2.30 angstroms vs 2.07 angstroms from DFT data).

Best regards,
Qisheng Wu


Date: Thu, 17 Nov 2022 08:51:10 +0100
> From: Bálint Aradi <aradi at uni-bremen.de>
> To: User list for DFTB+ related questions
>         <dftb-plus-user at mailman.zfn.uni-bremen.de>
> Subject: Re: [DFTB-Plus-User] Failure in diagonalisation routine
>         ZHEEVR for Li-S systems
> Message-ID: <aae55aeb-1858-1735-7e56-8819882cdc31 at uni-bremen.de>
> Content-Type: text/plain; charset="utf-8"; Format="flowed"
>
> Dear Qisheng Wu,
>
> what I meant is, that if you generate the parametrization yourself, you
> have control over the extent of the atomic orbitals via the wave
> function compression radius. Setting it to a low value, will compress
> the atomic orbitals and decrease their extent, while a high value
> results in more delocalized atomic orbitals. Setting the wave function
> compression radius for Li higher (compressing it less) may make the
> diagonalization of closely packed LiS structures more robust.
>
> Best regards,
>
> Bálint
>
> On 16.11.22 20:33, Wu, Qisheng wrote:
> > Dear Balint,
> >
> > Many thanks. But what do you mean by "decreasing/increasing the basis
> > function extend of the big/small element"? Sorry, I do not understand
> > this part. What exactly should I do about this?
> >
> > Best regards,
> > Qisheng Wu
> >
> >
> >
> >     Message: 1
> >     Date: Wed, 16 Nov 2022 08:32:58 +0100
> >     From: Bálint Aradi <aradi at uni-bremen.de <mailto:aradi at uni-bremen.de
> >>
> >     To: dftb-plus-user at mailman.zfn.uni-bremen.de
> >     <mailto:dftb-plus-user at mailman.zfn.uni-bremen.de>
> >     Subject: Re: [DFTB-Plus-User]  Re: Failure in diagonalisation
> >              routine ZHEEVR for Li-S systems
> >     Message-ID: <93b0eabb-b13f-ad86-f006-14cc51038777 at uni-bremen.de
> >     <mailto:93b0eabb-b13f-ad86-f006-14cc51038777 at uni-bremen.de>>
> >     Content-Type: text/plain; charset="utf-8"; Format="flowed"
> >
> >     Dear Qisheng Wu,
> >
> >     Probably your system is very much on the edge of diagonalizability
> (if
> >     such a word exists...), and the two different DFTB+ versions use
> >     different LAPACK implementation with slightly different diagonalizer
> /
> >     Cholesky-decomposer numerics, leading to different results. When
> >     putting
> >     very "big" and very "small" elements in a tightly packed solid, basis
> >     dependence can become an issue. Usually, decreasing/increasing the
> >     basis
> >     function extend of the big/small element can help to resolve the
> issue.
> >
> >     Best regards,
> >
> >     Bálint
> >
> >
> >
> >     On 14.11.22 17:34, Wu, Qisheng wrote:
> >      > Dear Martin,
> >      >
> >      > Thanks a lot for the comments. Here are my replies:
> >      >
> >      > I checked the skf.aux file, it shows "NotOrbitalResolved".
> >      >
> >      > I believe the geometry optimizations in both standalone DFTB+
> >     code and
> >      > MS are working properly. The error actually occurred at the very
> >     initial
> >      > step, so it has nothing to do with geometry optimizations. The
> error
> >      > also occurred when doing single-point energy calculations.
> >      >
> >      > For the fitting, I followed the procedure reported in a previous
> >     work
> >      > (https://doi.org/10.1021/acs.jpcc.8b01839
> >     <https://doi.org/10.1021/acs.jpcc.8b01839>
> >      > <https://doi.org/10.1021/acs.jpcc.8b01839
> >     <https://doi.org/10.1021/acs.jpcc.8b01839>>) conducted in our group
> >     (Yue
> >      > Qi group @ Brown Univ.), in which the parameters were fitted as an
> >      > extension of the mio set with the MS parameterization tools. In
> that
> >      > work, systematic validations were presented for the Li-containing
> >      > systems, including Li metal, Li-containing inorganic crystals
> (LiH,
> >      > Li2O, and Li2CO3), molecular species (LiOH, LiCH3, et al.), and
> some
> >      > surface and interface systems. Those fitted parameters (both the
> >      > electronic parameters of Li and the repulsive potentials) worked
> >      > very well. At that time, there was no LIB 2019 yet. I do not want
> to
> >      > make too many changes while trying to extend the parameterization
> >     set to
> >      > include S and maybe also other elements.
> >      >
> >      > For band structure validations of li metal and Li2S bulk, please
> >     see the
> >      > figure attached or through the following link:
> >      >
> >
> https://drive.google.com/file/d/1LSmYELMtIBQBlOlXgZjnACHUv208EnxU/view?usp=share_link
> <
> https://drive.google.com/file/d/1LSmYELMtIBQBlOlXgZjnACHUv208EnxU/view?usp=share_link>
> <
> https://drive.google.com/file/d/1LSmYELMtIBQBlOlXgZjnACHUv208EnxU/view?usp=share_link
> <
> https://drive.google.com/file/d/1LSmYELMtIBQBlOlXgZjnACHUv208EnxU/view?usp=share_link
> >>
> >      >
> >      > In my new fitting, the electronic parameters are slightly revised
> >      > compared to what was reported in our previous work
> >      > (https://doi.org/10.1021/acs.jpcc.8b01839
> >     <https://doi.org/10.1021/acs.jpcc.8b01839>
> >      > <https://doi.org/10.1021/acs.jpcc.8b01839
> >     <https://doi.org/10.1021/acs.jpcc.8b01839>>), but you can see that
> the
> >      > band structures near the Fermi level of Li metal are still well
> >      > reproduced. The band structures of the valence bands of Li2S
> >     calculated
> >      > with DFTB agree with Dmol3 calculations as well.
> >      >
> >      > I did not use dispersion correction while calculating the band
> >      > structures with DFTB and Dmol3 in MS. I tested on dispersion
> >     correction
> >      > (LJ, UFF parameters) while doing geometry optimizations with the
> >      > standalone DFTB+ code, and found that it makes little difference.
> >      >
> >      > Thanks again for your time.
> >      >
> >      > Best regards,
> >      > Qisheng Wu
> >      >
> >      >
> >      > On Fri, Nov 11, 2022 at 5:05 AM
> >      > <dftb-plus-user-request at mailman.zfn.uni-bremen.de
> >     <mailto:dftb-plus-user-request at mailman.zfn.uni-bremen.de>
> >      > <mailto:dftb-plus-user-request at mailman.zfn.uni-bremen.de
> >     <mailto:dftb-plus-user-request at mailman.zfn.uni-bremen.de>>> wrote:
> >      >
> >      >     -----------------------------
> >      >
> >      >     Message: 2
> >      >     Date: Fri, 11 Nov 2022 10:04:42 +0000
> >      >     From: PERSSON Martin <Martin.PERSSON at 3ds.com
> >     <mailto:Martin.PERSSON at 3ds.com>
> >      >     <mailto:Martin.PERSSON at 3ds.com <mailto:Martin.PERSSON at 3ds.com
> >>>
> >      >     To: User list for DFTB+ related questions
> >      >              <dftb-plus-user at mailman.zfn.uni-bremen.de
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> >     <mailto:dftb-plus-user at mailman.zfn.uni-bremen.de>>>
> >      >     Subject: Re: [DFTB-Plus-User] Failure in diagonalisation
> routine
> >      >              ZHEEVR for Li-S systems
> >      >     Message-ID: <1c5596207e8348d49f887df843c9c81a at 3ds.com
> >     <mailto:1c5596207e8348d49f887df843c9c81a at 3ds.com>
> >      >     <mailto:1c5596207e8348d49f887df843c9c81a at 3ds.com
> >     <mailto:1c5596207e8348d49f887df843c9c81a at 3ds.com>>>
> >      >     Content-Type: text/plain; charset="utf-8"
> >      >
> >      >     Dear Qisheng Wu,
> >      >
> >      >     If you extended the MIO library “OrbitalResolvedScc” should
> >     be set
> >      >     to “No”. The MS DFTB+ parameterization tools ensure that
> >     these type
> >      >     of settings are consistent when you extend parameters. You
> >     can what
> >      >     settings should be used in the skf.aux file in the library.
> >      >
> >      >     MS has its own drivers for Geometry optimization, Dynamics
> >     etc. so
> >      >     the optimizer likely takes a different path to the optimized
> >     geometry.
> >      >     Even though the MS 2020 version of DFTB+ is older it uses the
> >     same
> >      >     eigenvalue solvers. The only difference I noticed when
> >     updating was
> >      >     that we got slightly different geometries and dynamics
> >     results since
> >      >     the force evaluation has been updated, but those differences
> was
> >      >     very small.
> >      >
> >      >     When you did the optimization did you fit the electronic
> settings
> >      >     for Li to the Li band structure using the scripted tools in
> MS?
> >      >     Have you checked the band structure for the Li2S and did you
> run
> >      >     with or without dispersion correction?
> >      >
> >      >     Finally why did you extend the mio library? I think the “LIB
> >     2019”
> >      >     library, containing Li-C-H-N-O-P-F, is available in MS 2020.
> >     It was
> >      >     mainly fitted and validated against small molecules so I
> >     can’t make
> >      >     promises about how it will perform for solids. But then so
> >     was mio.
> >      >
> >      >     Best Regards,
> >      >     Martin PERSSON
> >      >     BIOVIA Scientific R&D Development Manager
> >      >
> >      >     Dear Dr. Aradi,
> >      >
> >      >     Thanks for your comment, but adding ShellResolvedScc = Yes
> >     does not
> >      >     solve the problem (DFTB+ 22.1).
> >      >
> >      >     Adding OrbitalResolvedScc = Yes to simulation with DFTB+ 17.1
> >     does
> >      >     not solve the problem as well.
> >      >
> >      >     In terms of the version of DFTB+ in Materials Studio 2020,
> >     here is
> >      >     the reply from people who work for Dassault Systemes:
> >      >
> >      >     "It is a modified version of the  r4729 version of the DFTB+
> >     code.
> >      >     It's from 2015. There is a few years gap in the updates of
> DFTB+
> >      >     since their rewrite of the code did not support all the
> features
> >      >     that were exposed in the MS version. The current release of
> >     MS has
> >      >     an up to date version of DFTB+."
> >      >
> >      >     I will also ask them to see if they can help solve this
> problem.
> >      >     Thanks again.
> >      >
> >      >     Best regards,
> >      >     Qisheng Wu
> >      >
> >      >
> >      >     On Wed, Nov 9, 2022 at 4:52 AM Bálint Aradi
> >     <aradi at uni-bremen.de <mailto:aradi at uni-bremen.de>
> >      >     <mailto:aradi at uni-bremen.de
> >     <mailto:aradi at uni-bremen.de>><mailto:aradi at uni-bremen.de
> >     <mailto:aradi at uni-bremen.de>
> >      >     <mailto:aradi at uni-bremen.de <mailto:aradi at uni-bremen.de>>>>
> >     wrote:
> >      >     The only difference I can see, is that you commented out
> >      >     OrbitalResolvedScc in your input (which was changed to
> >     ShellResolvedScc
> >      >     at some point). That would be important to add to get similar
> >     results as
> >      >     with MS.
> >      >
> >      >     As for periodic versus non-periodic: The overlap of the basis
> >     functions
> >      >     is in the periodic case bigger, so if your system is on the
> >     edge of
> >      >     having a linearly dependent basis set, chances are bigger,
> >     that you get
> >      >     a problem in the periodic case.
> >      >
> >      >     Cheers,
> >      >
> >      >     Bálint
> >      >
> >      >
> >      >     On 08.11.22 15:37, Wu, Qisheng wrote:
> >      >      > Dear Dr. Bálint Aradi,
> >      >      >
> >      >      > Many thanks for the quick reply. You are right that the S
> is
> >      >     supposed to
> >      >      > be with "d" as the maximal angular shell in the mio-set. I
> >     made the
> >      >      > change and re-run the geometry optimizations.
> >     Unfortunately, this
> >      >     does
> >      >      > not solve the problem. For the Li2S molecule, It turns out
> >     that
> >      >     it makes
> >      >      > very little difference in terms of Li-S bond length (2.005
> >      >     angstroms vs
> >      >      > 2.002 angstroms). But of course, "d" still should be used
> >     anyway.
> >      >      >
> >      >      > I have also looked at the input file generated within MS
> and
> >      >     attached it
> >      >      > to this email (Li2S_tetra.hsd). The version of DFTB+ in MS
> >     2020
> >      >     might be
> >      >      > different (I do not know what version it is), and there
> >     are some
> >      >      > keywords that I did not previously use in my input. The
> Driver
> >      >     section
> >      >      > is also empty, whose possible reason is that MS uses its
> own
> >      >     driver to
> >      >      > conduct geometry optimizations (it's just my guess). After
> >      >     tailoring my
> >      >      > own inputs based on what I found in the input from MS
> >     (dftb_in.hsd as
> >      >      > attached), I was still not able to solve the problem.
> >      >      >
> >      >      > What I do not understand is that the calculation works for
> >     the Li2S
> >      >      > molecule but not for the Li2S bulk. It's really puzzling.
> >     I hope this
> >      >      > issue could be fixed in the end.
> >      >      >
> >      >      > By the way, I have tested using different versions of
> >     DFTB+ (e.g.,
> >      >      > 17.1), and the same error showed up for geometry
> >     optimization of the
> >      >      > Li2S bulk, but not for the Li2S molecule.
> >      >      >
> >      >      > Thanks again.
> >      >      >
> >      >      > Best regards,
> >      >      > Qisheng Wu
> >      >      >
> >      >      >
> >      >      > On Tue, Nov 8, 2022 at 6:00 AM
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> >      >      >     When replying, please edit your Subject line so it is
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> >      >     specific
> >      >      >     than "Re: Contents of DFTB-Plus-User digest..."
> >      >      >
> >      >      >
> >      >      >     Today's Topics:
> >      >      >
> >      >      >         1. Re: Failure in diagonalisation routine ZHEEVR
> >     for Li-S
> >      >      >            systems (Bálint Aradi)
> >      >      >
> >      >      >
> >      >      >
> >      >
> >
>  ----------------------------------------------------------------------
> >      >      >
> >      >      >     Message: 1
> >      >      >     Date: Mon, 7 Nov 2022 16:12:28 +0100
> >      >      >     From: Bálint Aradi <aradi at uni-bremen.de
> >     <mailto:aradi at uni-bremen.de>
> >      >     <mailto:aradi at uni-bremen.de
> >     <mailto:aradi at uni-bremen.de>><mailto:aradi at uni-bremen.de
> >     <mailto:aradi at uni-bremen.de>
> >      >     <mailto:aradi at uni-bremen.de <mailto:aradi at uni-bremen.de>>>
> >     <mailto:aradi at uni-bremen.de <mailto:aradi at uni-bremen.de>
> >      >     <mailto:aradi at uni-bremen.de
> >     <mailto:aradi at uni-bremen.de>><mailto:aradi at uni-bremen.de
> >     <mailto:aradi at uni-bremen.de>
> >      >     <mailto:aradi at uni-bremen.de <mailto:aradi at uni-bremen.de>>>>>
> >      >      >     To: dftb-plus-user at mailman.zfn.uni-bremen.de
> >     <mailto:dftb-plus-user at mailman.zfn.uni-bremen.de>
> >      >     <mailto:dftb-plus-user at mailman.zfn.uni-bremen.de
> >     <mailto:dftb-plus-user at mailman.zfn.uni-bremen.de>><mailto:
> dftb-plus-user at mailman.zfn.uni-bremen.de <mailto:
> dftb-plus-user at mailman.zfn.uni-bremen.de> <mailto:
> dftb-plus-user at mailman.zfn.uni-bremen.de <mailto:
> dftb-plus-user at mailman.zfn.uni-bremen.de>>>
> >      >      >     <mailto:dftb-plus-user at mailman.zfn.uni-bremen.de
> >     <mailto:dftb-plus-user at mailman.zfn.uni-bremen.de>
> >      >     <mailto:dftb-plus-user at mailman.zfn.uni-bremen.de
> >     <mailto:dftb-plus-user at mailman.zfn.uni-bremen.de>><mailto:
> dftb-plus-user at mailman.zfn.uni-bremen.de <mailto:
> dftb-plus-user at mailman.zfn.uni-bremen.de> <mailto:
> dftb-plus-user at mailman.zfn.uni-bremen.de <mailto:
> dftb-plus-user at mailman.zfn.uni-bremen.de>>>>
> >      >      >     Subject: Re: [DFTB-Plus-User] Failure in
> >     diagonalisation routine
> >      >      >              ZHEEVR for Li-S systems
> >      >      >     Message-ID:
> >      >     <8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de
> >     <mailto:8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de>
> >      >     <mailto:8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de
> >     <mailto:8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de>><mailto:
> 8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de <mailto:
> 8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de> <mailto:
> 8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de <mailto:
> 8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de>>>
> >      >      >
> >       <mailto:8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de
> >     <mailto:8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de>
> >      >     <mailto:8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de
> >     <mailto:8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de>><mailto:
> 8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de <mailto:
> 8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de> <mailto:
> 8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de <mailto:
> 8d8e2f4f-6368-a719-f281-d263b107c054 at uni-bremen.de>>>>>
> >      >      >     Content-Type: text/plain; charset="utf-8";
> Format="flowed"
> >      >      >
> >      >      >     Dear Qisheng Wu,
> >      >      >
> >      >      >     The DFTB+ in MS is identical to the open source
> version,
> >      >     therefore,
> >      >      >     I am
> >      >      >     a little bit puzzled, why you get different behavior
> >     for the bulk
> >      >      >     calculation.
> >      >      >
> >      >      >     Check, whether the dftb+ input file generated by MS is
> >      >     equivalent to
> >      >      >     yours. My guess would be the maximal angular momenta.
> >      >     Actually, in the
> >      >      >     mio-set the S is supposed to be with "d" as maximal
> >     angular
> >      >     shell (and
> >      >      >     you use "p" instead). Also probably MS uses only "s"
> >     for the
> >      >     Li and not
> >      >      >     "p" as in your input?
> >      >      >
> >      >      >     Best regards,
> >      >      >
> >      >      > Bálint
> >      >      >
> >      >      >
> >      >      >     On 07.11.22 15:47, Wu, Qisheng wrote:
> >      >      >      > Dear DFTB+ developers,
> >      >      >      >
> >      >      >      > I am currently working on a Li-S system and fitted
> >     Li-Li
> >      >     and L-S
> >      >      >      > parameters as an extension of the /mio/ set using
> >     the DFTB+
> >      >      >     module and
> >      >      >      > parameterization tools as implemented in the
> >     Materials Studio
> >      >      >     software.
> >      >      >      > S-S is directly taken from the /mio/ set. To verify
> the
> >      >      >     parameters, I
> >      >      >      > first conducted geometry optimizations of Li2S bulk
> >     and Li2S
> >      >      >     molecule,
> >      >      >      > which ran very well through the DFTB+ module in the
> >      >     Materials Studio
> >      >      >      > software.
> >      >      >      >
> >      >      >      > Then I switched to DFTB+ 22.1 code (precompiled
> >     executable for
> >      >      >     x86_64),
> >      >      >      > which I will need to use for large-scale
> >     simulations. The
> >      >     geometry
> >      >      >      > optimization of the Li2S molecule worked very well,
> but
> >      >     that of
> >      >      >     the L2S
> >      >      >      > bulk failed, with the error information:
> >      >      >      >
> >      >      >      > "-> Failure in diagonalisation routine ZHEEVR,
> >     unable to
> >      >     complete
> >      >      >      > Cholesky factorization of B     85"
> >      >      >      >
> >      >      >      > I checked some previous messages in this email
> >     list, and
> >      >     am aware
> >      >      >     that
> >      >      >      > this could be due to unphysical geometry. But I do
> not
> >      >     think this
> >      >      >     is the
> >      >      >      > case for my simulation since it worked well at
> >     least for
> >      >     the Li2S
> >      >      >     molecule.
> >      >      >      >
> >      >      >      > I appreciate it if anyone can help address this
> issue,
> >      >     which will be
> >      >      >      > very helpful for me to continue my research
> project. I
> >      >     have put
> >      >      >     all the
> >      >      >      > inputs (dftb_in.hsd), outputs (out), and parameter
> >     files
> >      >     (*skf)
> >      >      >     in my
> >      >      >      > google drive. Feel free to download that using the
> >     link below:
> >      >      >      >
> >      >      >      >
> >      >      >
> >      >
> >
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link
> <
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link>
> <
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link
> <
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link>>
> <
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link
> <
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link>
> <
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link
> <
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link>>>
> <
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link
> <
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link>
> <
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link
> <
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link>>
> <
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link
> <
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link>
> <
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link
> <
> https://drive.google.com/file/d/1LL8GHzfI8pH4Nlr2ZJ8IN4q3xTVpQmy1/view?usp=share_link
> >>>>
> >      >      >      >
> >      >      >      > Best regards,
> >      >      >      > Qisheng Wu
> >      >      >      >
> >      >      >      > _______________________________________________
> >      >      >      > DFTB-Plus-User mailing list
> >      >      >      > DFTB-Plus-User at mailman.zfn.uni-bremen.de
> >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de>
> >      >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de
> >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de>><mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de <mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de> <mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de <mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de>>>
> >      >      >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de
> >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de>
> >      >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de
> >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de>><mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de <mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de> <mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de <mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de>>>>
> >      >      >      >
> >      >      >
> >      >
> >
> https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user
> <https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user>
> <https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user
> <https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user>>
> <https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user
> <https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user>
> <https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user
> <https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user
> >>>
> >      >      >
> >      >      >     --
> >      >      >     Dr. Bálint Aradi
> >      >      >     Bremen Center for Computational Materials Science,
> >     University
> >      >     of Bremen
> >      >      > http://www.bccms.uni-bremen.de/cms/people/b-aradi/
> >     <http://www.bccms.uni-bremen.de/cms/people/b-aradi/>
> >      >     <http://www.bccms.uni-bremen.de/cms/people/b-aradi/
> >     <http://www.bccms.uni-bremen.de/cms/people/b-aradi/>>
> >      >      >     <http://www.bccms.uni-bremen.de/cms/people/b-aradi/
> >     <http://www.bccms.uni-bremen.de/cms/people/b-aradi/>
> >      >     <http://www.bccms.uni-bremen.de/cms/people/b-aradi/
> >     <http://www.bccms.uni-bremen.de/cms/people/b-aradi/>>>
> >      >      >
> >      >      >
> >      >      >     -------------- next part --------------
> >      >      >     A non-text attachment was scrubbed...
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> >      >      >     URL:
> >      >      >
> >      >
> >       <
> http://mailman.zfn.uni-bremen.de/pipermail/dftb-plus-user/attachments/20221107/2202d405/attachment-0001.sig
> <
> http://mailman.zfn.uni-bremen.de/pipermail/dftb-plus-user/attachments/20221107/2202d405/attachment-0001.sig>
> <
> http://mailman.zfn.uni-bremen.de/pipermail/dftb-plus-user/attachments/20221107/2202d405/attachment-0001.sig
> <
> http://mailman.zfn.uni-bremen.de/pipermail/dftb-plus-user/attachments/20221107/2202d405/attachment-0001.sig>>
> <
> http://mailman.zfn.uni-bremen.de/pipermail/dftb-plus-user/attachments/20221107/2202d405/attachment-0001.sig
> <
> http://mailman.zfn.uni-bremen.de/pipermail/dftb-plus-user/attachments/20221107/2202d405/attachment-0001.sig>
> <
> http://mailman.zfn.uni-bremen.de/pipermail/dftb-plus-user/attachments/20221107/2202d405/attachment-0001.sig
> <
> http://mailman.zfn.uni-bremen.de/pipermail/dftb-plus-user/attachments/20221107/2202d405/attachment-0001.sig
> >>>>
> >      >      >
> >      >      >     ------------------------------
> >      >      >
> >      >      >     Subject: Digest Footer
> >      >      >
> >      >      >     _______________________________________________
> >      >      >     DFTB-Plus-User mailing list
> >      >      > DFTB-Plus-User at mailman.zfn.uni-bremen.de
> >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de>
> >      >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de
> >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de>><mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de <mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de> <mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de <mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de>>>
> >      >      >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de
> >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de>
> >      >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de
> >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de>><mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de <mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de> <mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de <mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de>>>>
> >      >      >
> >      >
> >
> https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user
> <https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user>
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> <https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user>>
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> <https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user
> >>>
> >      >      >
> >      >      >
> >      >      >     ------------------------------
> >      >      >
> >      >      >     End of DFTB-Plus-User Digest, Vol 99, Issue 6
> >      >      >     *********************************************
> >      >      >
> >      >      >
> >      >      > _______________________________________________
> >      >      > DFTB-Plus-User mailing list
> >      >      > DFTB-Plus-User at mailman.zfn.uni-bremen.de
> >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de>
> >      >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de
> >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de>><mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de <mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de> <mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de <mailto:
> DFTB-Plus-User at mailman.zfn.uni-bremen.de>>>
> >      >      >
> >      >
> >
> https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user
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> <https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user
> >>
> >      >
> >      >     --
> >      >     Dr. Bálint Aradi
> >      >     Bremen Center for Computational Materials Science, University
> >     of Bremen
> >      > http://www.bccms.uni-bremen.de/cms/people/b-aradi/
> >     <http://www.bccms.uni-bremen.de/cms/people/b-aradi/>
> >      >     <http://www.bccms.uni-bremen.de/cms/people/b-aradi/
> >     <http://www.bccms.uni-bremen.de/cms/people/b-aradi/>>
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> <
> http://mailman.zfn.uni-bremen.de/pipermail/dftb-plus-user/attachments/20221111/606dfc0e/attachment.htm>
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> >>>
> >      >
> >      >     ------------------------------
> >      >
> >      >     Subject: Digest Footer
> >      >
> >      >     _______________________________________________
> >      >     DFTB-Plus-User mailing list
> >      > DFTB-Plus-User at mailman.zfn.uni-bremen.de
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> >     <mailto:DFTB-Plus-User at mailman.zfn.uni-bremen.de>>
> >      >
> >
> https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user
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> >>
> >      >
> >      >
> >      >     ------------------------------
> >      >
> >      >     End of DFTB-Plus-User Digest, Vol 99, Issue 11
> >      >     **********************************************
> >      >
> >      >
> >      > _______________________________________________
> >      > DFTB-Plus-User mailing list
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> >
> https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user
> <https://mailman.zfn.uni-bremen.de/cgi-bin/mailman/listinfo/dftb-plus-user
> >
> >
> >     --
> >     Dr. Bálint Aradi
> >     Bremen Center for Computational Materials Science, University of
> Bremen
> >     http://www.bccms.uni-bremen.de/cms/people/b-aradi/
> >     <http://www.bccms.uni-bremen.de/cms/people/b-aradi/>
> >
> >
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> >
> >     ------------------------------
> >
> >     Subject: Digest Footer
> >
> >     _______________________________________________
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> >
> >
> >     ------------------------------
> >
> >     End of DFTB-Plus-User Digest, Vol 99, Issue 15
> >     **********************************************
> >
>
> --
> Dr. Bálint Aradi
> Bremen Center for Computational Materials Science, University of Bremen
> http://www.bccms.uni-bremen.de/cms/people/b-aradi/
>
>
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> End of DFTB-Plus-User Digest, Vol 99, Issue 20
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