Symmetry of charge order in cuprates

被引：2

作者：

Comin, R. ^{[1
,2
]}

Sutarto, R. ^{[3
]}

He, F. ^{[3
]}

da Silva Neto, E. H. ^{[1
,2
,4
,5
]}

Chauviere, L. ^{[1
,2
,4
]}

Frano, A. ^{[4
,6
]}

Liang, R. ^{[1
,2
]}

Hardy, W. N. ^{[1
,2
]}

Bonn, D. A. ^{[1
,2
]}

Yoshida, Y. ^{[7
]}

Eisaki, H. ^{[7
]}

Achkar, A. J. ^{[8
]}

Hawthorn, D. G. ^{[8
]}

Keimer, B. ^{[4
]}

Sawatzky, G. A. ^{[1
,2
]}

Damascelli, A. ^{[1
,2
]}

机构：

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

[2] Univ British Columbia, Quantum Matter Inst, Vancouver, BC V6T 1Z4, Canada

[3] Canadian Light Source, Saskatoon, SK S7N 2V3, Canada

[4] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

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

[6] Helmholtz Zentrum Berlin Mat & Energie, D-12489 Berlin, Germany

[7] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan

[8] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada

来源：

NATURE MATERIALS | 2015年 / 14卷 / 08期

基金：

加拿大自然科学与工程研究理事会;

关键词：

QUASI-PARTICLE STATES; X-RAY DIFFRACTION; STRIPE ORDER; DENSITY-WAVE; SUPERCONDUCTIVITY; NEMATICITY; MAGNETISM;

D O I：

10.1038/NMAT4295

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Charge-ordered ground states permeate the phenomenology of 3d-based transition metal oxides, and more generally represent a distinctive hallmark of strongly correlated states of matter. The recent discovery of charge order in various cuprate families has fuelled new interest into the role played by this incipient broken symmetry within the complex phase diagram of high-T-c superconductors. Here, we use resonant X-ray scattering to resolve the main characteristics of the charge-modulated state in two cuprate families: Bi2Sr2-xLaxCuO6C6+delta (Bi2201) and YBa2Cu3O6+y (YBCO). We detect no signatures of spatial modulations along the nodal direction in Bi2201, thus clarifying the inter-unit-cell momentum structure of charge order. We also resolve the intra-unit-cell symmetry of the charge-ordered state, which is revealed to be best represented by a bond order with modulated charges on the O-2p orbitals and a prominent d-wave character. These results provide insights into the origin and microscopic description of charge order in cuprates, and its interplay with superconductivity.

引用

页码：796 / +

页数：6

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