Raman spectra of Tl2Ba2CuO6−x crystals under pressure up to 20 GPa

L.V. Gasparov; O.V. Misochko; M.I. Eremets; E.S. Itskevich; A.V. Lomsadze; V.V. Struzhkin; A.M. Shirokov

doi:10.1016/0038-1098(89)90599-1

Raman spectra of Tl2Ba2CuO6−x crystals under pressure up to 20 GPa

L.V. Gasparov, O.V. Misochko, M.I. Eremets, E.S. Itskevich, A.V. Lomsadze, V.V. Struzhkin, A.M. Shirokov

Producción científica: Article › revisión exhaustiva

Resumen

Raman spectra of Tl2Ba2CuO6-x were measured at pressure up to 20 GPa. Nonlinear pressure dependence of Raman shifts of A1g -modes was observed at pressure exceeding 12 GPa. As follows from the analysis of logarithmic derivatives of Raman shifts under pressure, the vibrations of oxygen atoms are less sensitive to the pressure than the vibrations of metal atoms. This fact was interpreted as resulting from the layered arrangement of the unit cell of Tl2Ba2CuO6−x with oxygen atoms strongly bonded to Tl layers. With increasing hydrostatic pressure we were able to see the resonant enhancement of the Raman-scattering of Ba-vibrations.

Idioma original	American English
Páginas (desde-hasta)	465-467
Publicación	Solid State Communications
Volumen	72
N.º	5
DOI	https://doi.org/10.1016/0038-1098(89)90599-1
Estado	Published - ene 11 1989
Publicado de forma externa	Sí

Disciplines

Physics
Quantum Physics
Chemistry
Mineral Physics

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@article{130fa0619b4242cbbcd260196d22d66e,

title = "Raman spectra of Tl2Ba2CuO6−x crystals under pressure up to 20 GPa",

abstract = "Raman spectra of Tl2Ba2CuO6-x were measured at pressure up to 20 GPa. Nonlinear pressure dependence of Raman shifts of A1g -modes was observed at pressure exceeding 12 GPa. As follows from the analysis of logarithmic derivatives of Raman shifts under pressure, the vibrations of oxygen atoms are less sensitive to the pressure than the vibrations of metal atoms. This fact was interpreted as resulting from the layered arrangement of the unit cell of Tl2Ba2CuO6−x with oxygen atoms strongly bonded to Tl layers. With increasing hydrostatic pressure we were able to see the resonant enhancement of the Raman-scattering of Ba-vibrations.",

author = "L.V. Gasparov and O.V. Misochko and M.I. Eremets and E.S. Itskevich and A.V. Lomsadze and V.V. Struzhkin and A.M. Shirokov",

note = "Raman spectra of Tl 2Ba 2CuO were measured at pressure up to 20 GPa. Nonlinear pressure dependence of Raman shifts of A -modes was observed at pressure exceeding 12 GPa.",

year = "1989",

month = jan,

day = "11",

doi = "10.1016/0038-1098(89)90599-1",

language = "American English",

volume = "72",

pages = "465--467",

journal = "Solid State Communications",

issn = "0038-1098",

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TY - JOUR

T1 - Raman spectra of Tl2Ba2CuO6−x crystals under pressure up to 20 GPa

AU - Gasparov, L.V.

AU - Misochko, O.V.

AU - Eremets, M.I.

AU - Itskevich, E.S.

AU - Lomsadze, A.V.

AU - Struzhkin, V.V.

AU - Shirokov, A.M.

N1 - Raman spectra of Tl 2Ba 2CuO were measured at pressure up to 20 GPa. Nonlinear pressure dependence of Raman shifts of A -modes was observed at pressure exceeding 12 GPa.

PY - 1989/1/11

Y1 - 1989/1/11

N2 - Raman spectra of Tl2Ba2CuO6-x were measured at pressure up to 20 GPa. Nonlinear pressure dependence of Raman shifts of A1g -modes was observed at pressure exceeding 12 GPa. As follows from the analysis of logarithmic derivatives of Raman shifts under pressure, the vibrations of oxygen atoms are less sensitive to the pressure than the vibrations of metal atoms. This fact was interpreted as resulting from the layered arrangement of the unit cell of Tl2Ba2CuO6−x with oxygen atoms strongly bonded to Tl layers. With increasing hydrostatic pressure we were able to see the resonant enhancement of the Raman-scattering of Ba-vibrations.

AB - Raman spectra of Tl2Ba2CuO6-x were measured at pressure up to 20 GPa. Nonlinear pressure dependence of Raman shifts of A1g -modes was observed at pressure exceeding 12 GPa. As follows from the analysis of logarithmic derivatives of Raman shifts under pressure, the vibrations of oxygen atoms are less sensitive to the pressure than the vibrations of metal atoms. This fact was interpreted as resulting from the layered arrangement of the unit cell of Tl2Ba2CuO6−x with oxygen atoms strongly bonded to Tl layers. With increasing hydrostatic pressure we were able to see the resonant enhancement of the Raman-scattering of Ba-vibrations.

UR - http://www.sciencedirect.com/science/article/pii/0038109889905991

U2 - 10.1016/0038-1098(89)90599-1

DO - 10.1016/0038-1098(89)90599-1

M3 - Article

SN - 0038-1098

VL - 72

SP - 465

EP - 467

JO - Solid State Communications

JF - Solid State Communications

IS - 5

ER -