Inelastic x-ray study of phonon broadening and charge-density wave formation in ortho-II-ordered YBa2Cu3O6.54

被引：49

作者：

Blackburn, E. ^{[1
]}

Chang, J. ^{[2
]}

Said, A. H. ^{[3
]}

Leu, B. M. ^{[3
]}

Liang, Ruixing ^{[4
,5
]}

Bonn, D. A. ^{[4
,5
]}

Hardy, W. N. ^{[4
,5
]}

Forgan, E. M. ^{[1
]}

Hayden, S. M. ^{[6
]}

机构：

[1] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England

[2] Ecole Polytech Fed Lausanne, Inst Mat Complexe, CH-1015 Lausanne, Switzerland

[3] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

[4] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[5] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada

[6] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England

来源：

PHYSICAL REVIEW B | 2013年 / 88卷 / 05期

基金：

英国工程与自然科学研究理事会; 瑞士国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

HIGH-TEMPERATURE SUPERCONDUCTORS; NEUTRON-SCATTERING; FERMI-SURFACE; STRIPE ORDER; PHASE; DICHALCOGENIDES; TRANSITION;

D O I：

10.1103/PhysRevB.88.054506

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Inelastic x-ray scattering is used to investigate charge-density wave (CDW) formation and the low-energy lattice dynamics of the underdoped high-temperature superconductor ortho-II YBa2Cu3O6.54. We find that, for a temperature similar to 1/3 of the CDW onset temperature (approximate to 155 K), the CDW order is static within the resolution of the experiment, that is the inverse lifetime is less than 0.3 meV. In the same temperature region, low-energy phonons near the ordering wave vector of the CDW show large increases in their linewidths. This contrasts with the usual behavior in CDW systems where the phonon anomalies are strongest near the CDW onset temperature.

引用

页数：7

共 44 条

[31] Temperature dependence of the bond-stretching phonon anomaly in YBa2Cu3O6.95 [J].