Soft mode dynamics above and below the Burns temperature in the relaxor Pb(Mg1/3Nb2/3)O3

P. M. Gehring; S. Wakimoto; Z. G. Ye; G. Shirane

Soft mode dynamics above and below the Burns temperature in the relaxor Pb(Mg_1/3Nb_2/3)O₃

P. M. Gehring
, S. Wakimoto
, Z. G. Ye
, G. Shirane

科研成果: 期刊稿件 › 文章 › 同行评审

175 引用（Scopus）

摘要

Neutron inelastic scattering measurements of the lowest-energy transverse optic (TO) phonon branch was reported in the relaxor Pb(Mg_1/3Nb_2/3)O₃ in the temperature range from 400 to 1100 K. Well-defined propagating TO modes at all wave vectors and a zone center TO mode was observed that softened in a manner consistent with that of a ferroelectric soft mode far above the Burns temperature T_d ∼ 620 K. The zone center TO mode was found to be overdamped below T_d. It was found that the damping extended upto the waterfall wave vector which is a measure of the average size of the polar nanoregions.

源语言	英语
文章编号	277601
页（从-至）	2776011-2776014
页数	4
期刊	Physical Review Letters
卷	87
期	27 I
出版状态	已出版 - 31 12月 2001
已对外发布	是

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title = "Soft mode dynamics above and below the Burns temperature in the relaxor Pb(Mg1/3Nb2/3)O3",

abstract = "Neutron inelastic scattering measurements of the lowest-energy transverse optic (TO) phonon branch was reported in the relaxor Pb(Mg1/3Nb2/3)O3 in the temperature range from 400 to 1100 K. Well-defined propagating TO modes at all wave vectors and a zone center TO mode was observed that softened in a manner consistent with that of a ferroelectric soft mode far above the Burns temperature Td ∼ 620 K. The zone center TO mode was found to be overdamped below Td. It was found that the damping extended upto the waterfall wave vector which is a measure of the average size of the polar nanoregions.",

author = "Gehring, \{P. M.\} and S. Wakimoto and Ye, \{Z. G.\} and G. Shirane",

year = "2001",

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day = "31",

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TY - JOUR

T1 - Soft mode dynamics above and below the Burns temperature in the relaxor Pb(Mg1/3Nb2/3)O3

AU - Gehring, P. M.

AU - Wakimoto, S.

AU - Ye, Z. G.

AU - Shirane, G.

PY - 2001/12/31

Y1 - 2001/12/31

N2 - Neutron inelastic scattering measurements of the lowest-energy transverse optic (TO) phonon branch was reported in the relaxor Pb(Mg1/3Nb2/3)O3 in the temperature range from 400 to 1100 K. Well-defined propagating TO modes at all wave vectors and a zone center TO mode was observed that softened in a manner consistent with that of a ferroelectric soft mode far above the Burns temperature Td ∼ 620 K. The zone center TO mode was found to be overdamped below Td. It was found that the damping extended upto the waterfall wave vector which is a measure of the average size of the polar nanoregions.

AB - Neutron inelastic scattering measurements of the lowest-energy transverse optic (TO) phonon branch was reported in the relaxor Pb(Mg1/3Nb2/3)O3 in the temperature range from 400 to 1100 K. Well-defined propagating TO modes at all wave vectors and a zone center TO mode was observed that softened in a manner consistent with that of a ferroelectric soft mode far above the Burns temperature Td ∼ 620 K. The zone center TO mode was found to be overdamped below Td. It was found that the damping extended upto the waterfall wave vector which is a measure of the average size of the polar nanoregions.

UR - https://www.scopus.com/pages/publications/0035980992

M3 - 文章

AN - SCOPUS:0035980992

SN - 0031-9007

VL - 87

SP - 2776011

EP - 2776014

JO - Physical Review Letters

JF - Physical Review Letters

IS - 27 I

M1 - 277601

ER -

Soft mode dynamics above and below the Burns temperature in the relaxor Pb(Mg1/3Nb2/3)O3

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Soft mode dynamics above and below the Burns temperature in the relaxor Pb(Mg_1/3Nb_2/3)O₃