Инд. авторы:	Ponosov Y.S., Kuznetsova T.V., Tereshchenko O.E., Kokh K.A., Chulkov E.V.
Заглавие:	Dynamics of the BiTeI lattice at high pressures
Библ. ссылка:	Ponosov Y.S., Kuznetsova T.V., Tereshchenko O.E., Kokh K.A., Chulkov E.V. Dynamics of the BiTeI lattice at high pressures // Journal of Experimental and Theoretical Physics Letters (JETP Letters). - 2014. - Vol.98. - Iss. 9. - P.557-561. - ISSN 0021-3640. - EISSN 1090-6487.
Внешние системы:	DOI: 10.1134/S0021364013220074; РИНЦ: 21862405; SCOPUS: 2-s2.0-84891601189; WoS: 000329247500008;
Реферат:	eng: Raman measurements of the phonon spectrum of BiTeI at pressures of up to 20 GPa have been performed. A decrease in the linewidth of E2 vibration by almost a factor of 2 with an increase in the pressure to 3 GPa has been detected. The frequencies of all four Raman active modes increase monotonically with the pressure. These lines are observed in spectra up to ∼8 GPa. Sharp change in the spectrum occurs at pressures of 8-9 GPa, indicating a transition to the high-pressure phase, which holds up to 20 GPa. This transition is reversible and hardly has any hysteresis. A sample in the high-pressure phase is single crystal. © 2013 Pleiades Publishing, Inc.
Ключевые слова:	PHONON SELF-ENERGIES;
Издано:	2014
Физ. характеристика:	с.557-561