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Lattice dynamics and phonon dispersion in Hg 2Br 2 model ferroelastic crystals. / Roginskii, E. M.; Kvasov, A. A.; Markov, Yu F.; Smirnov, M. B.

в: Technical Physics Letters, Том 38, № 4, 04.2012, стр. 361-364.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Harvard

Roginskii, EM, Kvasov, AA, Markov, YF & Smirnov, MB 2012, 'Lattice dynamics and phonon dispersion in Hg 2Br 2 model ferroelastic crystals', Technical Physics Letters, Том. 38, № 4, стр. 361-364. https://doi.org/10.1134/S106378501204027X

APA

Roginskii, E. M., Kvasov, A. A., Markov, Y. F., & Smirnov, M. B. (2012). Lattice dynamics and phonon dispersion in Hg 2Br 2 model ferroelastic crystals. Technical Physics Letters, 38(4), 361-364. https://doi.org/10.1134/S106378501204027X

Vancouver

Roginskii EM, Kvasov AA, Markov YF, Smirnov MB. Lattice dynamics and phonon dispersion in Hg 2Br 2 model ferroelastic crystals. Technical Physics Letters. 2012 Апр.;38(4):361-364. https://doi.org/10.1134/S106378501204027X

Author

Roginskii, E. M. ; Kvasov, A. A. ; Markov, Yu F. ; Smirnov, M. B. / Lattice dynamics and phonon dispersion in Hg 2Br 2 model ferroelastic crystals. в: Technical Physics Letters. 2012 ; Том 38, № 4. стр. 361-364.

BibTeX

@article{4c2d878b40704b3bbeeee9d0da8b2e6a,
title = "Lattice dynamics and phonon dispersion in Hg 2Br 2 model ferroelastic crystals",
abstract = "Interatomic force constants have been determined, acoustic and optical phonon frequencies have been calculated, phonon dispersion curves have been constructed, and the density of states in the phonon spectrum has been obtained for Hg 2Br 2 model ferroelastic crystals. The effect of hydrostatic pressure on the acoustic and optical phonon frequencies and their dispersion has been theoretically analyzed. It is established that an increase in the pressure leads to significant softening of the slowest acoustic TA branch (soft mode) at the X point of the Brillouin zone, which agrees with the phenomenological Landau theory of phase transitions and is consistent with the available experimental data.",
author = "Roginskii, {E. M.} and Kvasov, {A. A.} and Markov, {Yu F.} and Smirnov, {M. B.}",
note = "Funding Information: Acknowledgments. This study was supported in part by the Russian Foundation for Basic Research (project no. 05 08 33431), the Presidium of the Russian Acad emy of Sciences (Program P 03), and the Department of Physics of the Russian Academy of Sciences. Copyright: Copyright 2012 Elsevier B.V., All rights reserved.",
year = "2012",
month = apr,
doi = "10.1134/S106378501204027X",
language = "English",
volume = "38",
pages = "361--364",
journal = "Technical Physics Letters",
issn = "1063-7850",
publisher = "МАИК {"}Наука/Интерпериодика{"}",
number = "4",

}

RIS

TY - JOUR

T1 - Lattice dynamics and phonon dispersion in Hg 2Br 2 model ferroelastic crystals

AU - Roginskii, E. M.

AU - Kvasov, A. A.

AU - Markov, Yu F.

AU - Smirnov, M. B.

N1 - Funding Information: Acknowledgments. This study was supported in part by the Russian Foundation for Basic Research (project no. 05 08 33431), the Presidium of the Russian Acad emy of Sciences (Program P 03), and the Department of Physics of the Russian Academy of Sciences. Copyright: Copyright 2012 Elsevier B.V., All rights reserved.

PY - 2012/4

Y1 - 2012/4

N2 - Interatomic force constants have been determined, acoustic and optical phonon frequencies have been calculated, phonon dispersion curves have been constructed, and the density of states in the phonon spectrum has been obtained for Hg 2Br 2 model ferroelastic crystals. The effect of hydrostatic pressure on the acoustic and optical phonon frequencies and their dispersion has been theoretically analyzed. It is established that an increase in the pressure leads to significant softening of the slowest acoustic TA branch (soft mode) at the X point of the Brillouin zone, which agrees with the phenomenological Landau theory of phase transitions and is consistent with the available experimental data.

AB - Interatomic force constants have been determined, acoustic and optical phonon frequencies have been calculated, phonon dispersion curves have been constructed, and the density of states in the phonon spectrum has been obtained for Hg 2Br 2 model ferroelastic crystals. The effect of hydrostatic pressure on the acoustic and optical phonon frequencies and their dispersion has been theoretically analyzed. It is established that an increase in the pressure leads to significant softening of the slowest acoustic TA branch (soft mode) at the X point of the Brillouin zone, which agrees with the phenomenological Landau theory of phase transitions and is consistent with the available experimental data.

UR - http://www.scopus.com/inward/record.url?scp=84861756199&partnerID=8YFLogxK

U2 - 10.1134/S106378501204027X

DO - 10.1134/S106378501204027X

M3 - Article

AN - SCOPUS:84861756199

VL - 38

SP - 361

EP - 364

JO - Technical Physics Letters

JF - Technical Physics Letters

SN - 1063-7850

IS - 4

ER -

ID: 73027075