### Abstract

In our recent works, we have developed a mixed-space approach within the framework of direct method for the first-principle calculation of phonon properties. It makes full use of the accuracy of the force constants calculated in the real space and the dipole-dipole interactions in the reciprocal space, making the accurate phonon calculation possible with the direct method for polar materials. In this paper, an efficient C++ implementation of the mixed-space approach, YPHON, is provided as open source, including demos and Linux scripts for extracting input data to YPHON from the output of VASP.5. The functions of the current package include the calculations of: (1) the phonon dispersions; (2) the phonon density of states; (3) the neutron scattering section weighted phonon density of state; (4) the phonons of the high symmetry structure using the force constants from low symmetry structure; (5) the phonon dispersions of random alloys; and (6) the analysis of the vibrational modes using the point group theory.

Original language | English (US) |
---|---|

Pages (from-to) | 2950-2968 |

Number of pages | 19 |

Journal | Computer Physics Communications |

Volume | 185 |

Issue number | 11 |

DOIs | |

State | Published - Nov 2014 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Hardware and Architecture
- Physics and Astronomy(all)

### Cite this

}

*Computer Physics Communications*, vol. 185, no. 11, pp. 2950-2968. https://doi.org/10.1016/j.cpc.2014.06.023

**YPHON : A package for calculating phonons of polar materials.** / Wang, Yi; Chen, Long Qing; Liu, Zi Kui.

Research output: Contribution to journal › Article

TY - JOUR

T1 - YPHON

T2 - A package for calculating phonons of polar materials

AU - Wang, Yi

AU - Chen, Long Qing

AU - Liu, Zi Kui

PY - 2014/11

Y1 - 2014/11

N2 - In our recent works, we have developed a mixed-space approach within the framework of direct method for the first-principle calculation of phonon properties. It makes full use of the accuracy of the force constants calculated in the real space and the dipole-dipole interactions in the reciprocal space, making the accurate phonon calculation possible with the direct method for polar materials. In this paper, an efficient C++ implementation of the mixed-space approach, YPHON, is provided as open source, including demos and Linux scripts for extracting input data to YPHON from the output of VASP.5. The functions of the current package include the calculations of: (1) the phonon dispersions; (2) the phonon density of states; (3) the neutron scattering section weighted phonon density of state; (4) the phonons of the high symmetry structure using the force constants from low symmetry structure; (5) the phonon dispersions of random alloys; and (6) the analysis of the vibrational modes using the point group theory.

AB - In our recent works, we have developed a mixed-space approach within the framework of direct method for the first-principle calculation of phonon properties. It makes full use of the accuracy of the force constants calculated in the real space and the dipole-dipole interactions in the reciprocal space, making the accurate phonon calculation possible with the direct method for polar materials. In this paper, an efficient C++ implementation of the mixed-space approach, YPHON, is provided as open source, including demos and Linux scripts for extracting input data to YPHON from the output of VASP.5. The functions of the current package include the calculations of: (1) the phonon dispersions; (2) the phonon density of states; (3) the neutron scattering section weighted phonon density of state; (4) the phonons of the high symmetry structure using the force constants from low symmetry structure; (5) the phonon dispersions of random alloys; and (6) the analysis of the vibrational modes using the point group theory.

UR - http://www.scopus.com/inward/record.url?scp=84906951205&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84906951205&partnerID=8YFLogxK

U2 - 10.1016/j.cpc.2014.06.023

DO - 10.1016/j.cpc.2014.06.023

M3 - Article

AN - SCOPUS:84906951205

VL - 185

SP - 2950

EP - 2968

JO - Computer Physics Communications

JF - Computer Physics Communications

SN - 0010-4655

IS - 11

ER -