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@ -605,7 +605,9 @@ where $N$ is the number of grid points on the sampling mesh.
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$\Phi_{\lambda \lambda' \lambda''} \equiv 0$ unless
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$\mathbf{q} + \mathbf{q}' + \mathbf{q}'' = \mathbf{G}$.
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See also references {cite}`Togo-PRB-2015,Mizokami-PRB-2018`.
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<!-- See also references {cite}`Togo-PRB-2015,Mizokami-PRB-2018`. -->
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See also {ref}`reference papers <ave_pp_reference>`.
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This option works only when `--read-gamma` and `--br` options are activated
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where the averaged phonon-phonon interaction that is read from
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@ -635,7 +637,11 @@ constant value and $|\Phi_{\lambda \lambda'
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{ref}`--ave-pp <ave_pp_option>` for thermal conductivity calculation. This
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option works only when `--br` options are activated. Therefore third-order force
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constants are not necessary to input. The physical unit of the value is
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$\text{eV}^2$. See also references {cite}`Togo-PRB-2015,Mizokami-PRB-2018`.
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$\text{eV}^2$.
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<!-- See also references {cite}`Togo-PRB-2015,Mizokami-PRB-2018`. -->
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See also {ref}`reference papers <ave_pp_reference>`.
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```bash
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% phono3py --dim="3 3 2" -v --mesh="32 32 20" -c POSCAR-unitcell --br --const-ave-pp=1e-10
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@ -826,7 +832,9 @@ $$
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respectively. In the above formulae, angular frequency $\omega$ is used, but in
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the calculation results, ordinal frequency $\nu$ is used. Be careful about
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$2\pi$ treatment. See also references {cite}`Togo-PRB-2015,Togo-JPCM-2022`.
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$2\pi$ treatment.
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See also {ref}`reference papers <spectral_function_reference>`.
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(ise_option)=
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@ -890,7 +898,7 @@ $$
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\int_0^\infty \frac{d\omega}{2\pi} A_\lambda(\omega) = 1.
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$$
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See also reference {cite}`Togo-JPCM-2022`.
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See also {ref}`reference papers <spectral_function_reference>`.
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### `--spf` (`SPECTRAL_FUNCTION = .TRUE.`)
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@ -944,7 +952,7 @@ $$
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\end{align}
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$$
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(See also references {cite}`Togo-PRB-2015,Togo-JPCM-2022`.)
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See also {ref}`reference papers <spectral_function_reference>`.
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```bash
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% phono3py --fc2 --dim="2 2 2" --pa="F" -c POSCAR-unitcell --mesh="16 16 16" --jdos --ga="0 0 0 8 8 8"
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@ -970,7 +978,7 @@ $$
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\end{align}
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$$
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(See also references {cite}`Togo-PRB-2015,Mizokami-PRB-2018,Togo-JPCM-2022`.)
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See also {ref}`reference papers <spectral_function_reference>`.
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```bash
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% phono3py --fc2 --dim="2 2 2" --pa="F" -c POSCAR-unitcell --mesh="16 16 16" --jdos --ga="0 0 0 8 8 8" --ts=300
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@ -1247,8 +1255,8 @@ This modifies default input and output file names.
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This is equivalent to setting `-i` and `-o` simultaneously.
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## References
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<!-- ## References
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```{bibliography}
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:filter: docname in docnames
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```
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``` -->
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@ -1,8 +1,13 @@
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(command_cutoff_pair)=
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# Force constants calculation with cutoff pair-distance
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Here the detail of the command option {ref}`--cutoff_pair <cutoff_pair_option>`
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is explained. See also reference {cite}`Mizokami-PRB-2018`.
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is explained.
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<!-- See also reference {cite}`Mizokami-PRB-2018`. -->
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See also {ref}`a reference paper <cutoff_pair_reference>`.
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```{contents}
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:depth: 2
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@ -270,7 +275,6 @@ if data2['distance'] < 5.0: # 5.0 is cutoff-pair distance
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we can find the supercell IDs almost equivalent to those obtained
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above for `--cutoff-pair="5.0"`.
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## Tests
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### Si-PBE
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@ -429,7 +433,7 @@ number_of_pairs_in_cutoff: 1248
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300.0 235.728 235.728 219.102 0.000 -0.000 -0.000
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```
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## References
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<!-- ## References
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```{bibliography}
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:filter: docname in docnames
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```
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``` -->
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13
doc/index.md
13
doc/index.md
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@ -4,8 +4,8 @@ This software calculates phonon-phonon interaction and related properties using
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the supercell approach. For example, the following physical values are obtained:
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- {ref}`Lattice thermal conductivity by relaxation time approximation
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and direct-solution of phonon Boltzmann equation and
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the Wigner transport equation <LTC_options>`
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and direct-solution of phonon Boltzmann equation and
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the Wigner transport equation <LTC_options>`
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- {ref}`Cummulative lattice thermal conductivity and related properties <auxiliary_tools_kaccum>`
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- {ref}`self_energy_options` (Phonon lifetime/linewidth)
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- {ref}`jdos_option`
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@ -17,14 +17,6 @@ the supercell approach. For example, the following physical values are obtained:
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- API is prepared to operate phono3py from Python
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([example](https://github.com/phonopy/phono3py/blob/master/example/Si-PBEsol/Si.py)).
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Papers that may introduce phono3py:
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- Theoretical background is summarized in this paper:
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http://dx.doi.org/10.1103/PhysRevB.91.094306 (arxiv
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http://arxiv.org/abs/1501.00691).
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- Introduction to phono3py application:
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https://doi.org/10.1103/PhysRevB.97.224306 (open access).
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```{image} Si-kaccum.png
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:width: 20%
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```
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@ -58,6 +50,7 @@ phono3py-api
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phono3py-load
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tips
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citation
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reference
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changelog
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```
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@ -1,9 +1,50 @@
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# References
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(reviews_reference)=
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## Reviews
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- "First-principles Phonon Calculations with Phonopy and Phono3py" Atsushi Togo,
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J. Phys. Soc. Jpn. **92**, 012001-1-21 (2023)
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[[doi](https://doi.org/10.7566/JPSJ.92.012001)] open access
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- "Implementation strategies in phonopy and phono3py" Atsushi Togo, Laurent
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Chaput, Terumasa Tadano, Isao Tanaka, J. Phys.: Condens. Matter **35**,
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353001-1-22 (2023) [[doi](https://doi.org/10.1088/1361-648x/acd831)] open
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access
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(ave_pp_reference)=
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## Averaged phonon-phonon interaction strength
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- "Distributions of phonon lifetimes in Brillouin zones" Atsushi Togo, Laurent
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Chaput, and Isao Tanaka, Phys. Rev. B, **91**, 094306-1-31 (2015).
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[[doi](https://doi.org/10.1103/PhysRevB.91.094306)]
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- "Lattice thermal conductivities of two SiO2 polymorphs by first-principles
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calculations and the phonon Boltzmann transport equation" Keiyu Mizokami,
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Atsushi Togo, and Isao Tanaka, Phys. Rev. B **97**, 224306-1-10 (2018)
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[[doi](https://doi.org/10.1103/PhysRevB.97.224306)] open access
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(cutoff_pair_reference)=
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## Cutoff-pair displacements
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- "Lattice thermal conductivities of two SiO2 polymorphs by first-principles
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calculations and the phonon Boltzmann transport equation" Keiyu Mizokami,
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Atsushi Togo, and Isao Tanaka, Phys. Rev. B **97**, 224306-1-10 (2018)
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[[doi](https://doi.org/10.1103/PhysRevB.97.224306)] open access
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(spectral_function_reference)=
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## Self-energy, spectral function, joint-density of states
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“LO-mode phonon of KCl and NaCl at 300 K by inelastic x-ray scattering
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measurements and first principles calculations” Atsushi Togo, Hiroyuki Hayashi,
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Terumasa Tadano, Satoshi Tsutsui, Isao Tanaka, J. Phys.: Condens. Matter 34,
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365401-1-15 (2022) [[doi]](https://doi.org/10.1088/1361-648X/ac7b01).
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- "LO-mode phonon of KCl and NaCl at 300 K by inelastic x-ray scattering
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measurements and first principles calculations" Atsushi Togo, Hiroyuki
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Hayashi, Terumasa Tadano, Satoshi Tsutsui, Isao Tanaka, J. Phys.: Condens.
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Matter **34**, 365401-1-15 (2022)
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[[doi](https://doi.org/10.1088/1361-648X/ac7b01)] open access
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- "First-principles Phonon Calculations with Phonopy and Phono3py" Atsushi Togo,
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J. Phys. Soc. Jpn. **92**, 012001-1-21 (2023)
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[[doi](https://doi.org/10.7566/JPSJ.92.012001)] open access
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@ -846,13 +846,13 @@ class Interaction:
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def _set_fc3(self, fc3):
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if (
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type(fc3) == np.ndarray
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isinstance(fc3, np.ndarray)
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and fc3.dtype == np.dtype("double")
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and fc3.flags.aligned
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and fc3.flags.owndata
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and fc3.flags.c_contiguous
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and self._frequency_scale_factor is None
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): # noqa E129
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):
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self._fc3 = fc3
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elif self._frequency_scale_factor is None:
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self._fc3 = np.array(fc3, dtype="double", order="C")
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