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[交流] Anharmonic Phonons

anharmonic phonons

phq: temperature dependent phonon quasiparticle dispersions of complex crystals from first principles. (https://github.com/mineralscloud/phq)

sscha: the stochastic self-consistent harmonic approximation: calculating vibrational properties of materials with full quantum and anharmonic effects. (https://sscha.eu/)

csld: a comprehensive package to study lattice dynamics from first-principles. the interatomic force constants were fitted using the compressive sensing algorithm. (https://github.com/llnl/csld)

aflow-aapl: automation of phonon calculations and thermal conductivity. (https://www.nature.com/articles/s41524-017-0046-7)

alamode: high-order force constants and self-consistent phonons. (https://alamode.readthedocs.io/)

almabte: boltzmann transport for device level simulations. (https://almabte.bitbucket.io/)

dynaphopy: anharmonic phonons from molecular dynamics simulations. (https://abelcarreras.github.io/dynaphopy/index.html)

d3q: 3-phonon processes and stochastic self-consistent phonons using random displacements. (https://anharmonic.github.io/)

phono3py: 3-phonon processesand thermal conductivity from finite-displacements. (https://phonopy.github.io/phono3py/)

scalid: self-consistent phonon approach, but no longer developed and fails for optic modes. (https://www.uquantchem.com/scaild.html)

shengbte: 3-phonon processes and thermal conductivity from finite-displacements. (https://www.shengbte.org/)

tdep: effective hamiltonian approach for anharmonic systems from molecular dynamics simulations. (https://ollehellman.github.io/)

openbte: an open source, parallel solver based on the phonon mean-free-path dependent boltzmann transport equation and heat diffusion equation, and it is interfaced to the most popular first-principles thermal conductivity solvers. (https://openbte.readthedocs.io/)

hiphive: hiphive is a tool for efficiently extracting high-order force constants from atomistic simulations, most commonly density functional theory calculations. it has been implemented in the form of a python library, which allows it to be readily integrated with many first-principles codes and analysis tools accessible in python. (https://hiphive.materialsmodeling.org/)

phonts: phonts is a lattice dynamics code that calculates thermal conductivity via the solution of the boltzmann transport equation (bte) for phonons.

kaldo:kaldo is a modern python-based software that implements both the boltzmann transport equation (bte) and the quasi-harmonic green kubo (qhgk) method, which runs on gpus and cpus using tensorflow. more details can be found on the kaldo website (https://github.com/nanotheorygroup/kaldo

fourphonon:an extension module to shengbte for computing four-phonon scattering rates and thermal conductivity. (https://github.com/fourphonon

[ Last edited by 漫天飘雪 on 2021-5-6 at 10:37 ]
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7楼: Originally posted by iamikaruk at 2021-03-23 09:56:42
sscha用的是python和fortran混合编译。但是在处理Hessian的时候会非常麻烦,216个原子的立方体系计算Hessian需要大概1 T的内存。
热输运我正在摸索,他们的code可以给出phono3py的FORCE_CONSTANTS和FC3格式文件, ...

超导的部分,是利用sscha求解出SSCHA phonon frequencies 和 polarizations,然后带入到Phys. Rev. Lett. 111, 177002 (2013)公式6中,求解α2F(ω)、λ以及Tc的。这是他们早期的做法。后来应该是和欧洲一些科学家合作,把scdft这套理论里面,需要输入phonon frequencies 和 polarizations部分进行了改写,完善超导这部分内容的。
8楼2021-03-23 11:22:45
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考拉VS博比

木虫 (正式写手)



漫天飘雪(金币+2): 谢谢参与
4楼2021-03-22 23:08:49
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iamikaruk

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漫天飘雪(金币+1): 谢谢参与
里面我最看好的是sscha,可惜这个东西在并行上太差了
5楼2021-03-23 06:43:08
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5楼: Originally posted by iamikaruk at 2021-03-23 06:43:08
里面我最看好的是sscha,可惜这个东西在并行上太差了

能出来fortran版本,估计会好很多。另外,他们后续关于热输运、superconduct的code都没有给
6楼2021-03-23 09:28:35
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