The influence of atoms of second coordination sphere on phonon dispersion of diamond
Within the framework of the phenomenological model of twoparticle interaction, the effect of the interaction energy of atoms from the second coordination sphere on the phonon dispersion is considered. This approach makes it possible to vary the growth of the phonon frequency relative to the optic...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Omsk State Technical University, Federal State Autonoumos Educational Institution of Higher Education
2020-11-01
|
| Series: | Омский научный вестник |
| Subjects: | |
| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2020/5%20(173)/111-113%20%D0%A1%D0%B0%D1%87%D0%BA%D0%BE%D0%B2%20%D0%92.%20%D0%90..pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832570564338778112 |
|---|---|
| author | V. A. Sachkov |
| author_facet | V. A. Sachkov |
| author_sort | V. A. Sachkov |
| collection | DOAJ |
| description | Within the framework of the phenomenological model of twoparticle interaction, the effect of the interaction energy of atoms
from the second coordination sphere on the phonon dispersion is
considered. This approach makes it possible to vary the growth
of the phonon frequency relative to the optical phonon in the
center of the Brillun zone. The effects of the contribution to the
Raman spectra from longitudinal optical phonons with frequencies
higher than their frequency at the center of the Brillouin zone
are discussed. The contribution to the frequency of interaction of
atoms from the second coordination sphere for some phonons is
obtained in an explicit form. The formulas obtained will be useful
for calculating the spectra of Raman scattering of light by optical
phonons localized in diamond nanocrystals. |
| format | Article |
| id | doaj-art-5d7ffd547edf4715a59aa46ee5bcdac2 |
| institution | Kabale University |
| issn | 1813-8225 2541-7541 |
| language | English |
| publishDate | 2020-11-01 |
| publisher | Omsk State Technical University, Federal State Autonoumos Educational Institution of Higher Education |
| record_format | Article |
| series | Омский научный вестник |
| spelling | doaj-art-5d7ffd547edf4715a59aa46ee5bcdac22025-02-02T15:15:24ZengOmsk State Technical University, Federal State Autonoumos Educational Institution of Higher EducationОмский научный вестник1813-82252541-75412020-11-015 (173)11111310.25206/1813-8225-2020-173-111-113The influence of atoms of second coordination sphere on phonon dispersion of diamondV. A. Sachkov0Omsk Scientific Center of Siberian Branch of Russian Academy of SciencesWithin the framework of the phenomenological model of twoparticle interaction, the effect of the interaction energy of atoms from the second coordination sphere on the phonon dispersion is considered. This approach makes it possible to vary the growth of the phonon frequency relative to the optical phonon in the center of the Brillun zone. The effects of the contribution to the Raman spectra from longitudinal optical phonons with frequencies higher than their frequency at the center of the Brillouin zone are discussed. The contribution to the frequency of interaction of atoms from the second coordination sphere for some phonons is obtained in an explicit form. The formulas obtained will be useful for calculating the spectra of Raman scattering of light by optical phonons localized in diamond nanocrystals.https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2020/5%20(173)/111-113%20%D0%A1%D0%B0%D1%87%D0%BA%D0%BE%D0%B2%20%D0%92.%20%D0%90..pdfphonondiamondnanocrystalkeating model |
| spellingShingle | V. A. Sachkov The influence of atoms of second coordination sphere on phonon dispersion of diamond Омский научный вестник phonon diamond nanocrystal keating model |
| title | The influence of atoms of second coordination sphere on phonon dispersion of diamond |
| title_full | The influence of atoms of second coordination sphere on phonon dispersion of diamond |
| title_fullStr | The influence of atoms of second coordination sphere on phonon dispersion of diamond |
| title_full_unstemmed | The influence of atoms of second coordination sphere on phonon dispersion of diamond |
| title_short | The influence of atoms of second coordination sphere on phonon dispersion of diamond |
| title_sort | influence of atoms of second coordination sphere on phonon dispersion of diamond |
| topic | phonon diamond nanocrystal keating model |
| url | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2020/5%20(173)/111-113%20%D0%A1%D0%B0%D1%87%D0%BA%D0%BE%D0%B2%20%D0%92.%20%D0%90..pdf |
| work_keys_str_mv | AT vasachkov theinfluenceofatomsofsecondcoordinationsphereonphonondispersionofdiamond AT vasachkov influenceofatomsofsecondcoordinationsphereonphonondispersionofdiamond |