Electronic liquid crystal state in the high-temperature superconductor YBa2Cu3O6.45

被引：441

作者：

Hinkov, V. ^{[1
]}

Haug, D. ^{[1
]}

Fauque, B. ^{[2
]}

Bourges, P. ^{[2
]}

Sidis, Y. ^{[2
]}

Ivanov, A. ^{[3
]}

Bernhard, C. ^{[4
,5
]}

Lin, C. T. ^{[1
]}

Keimer, B. ^{[1
]}

机构：

[1] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[2] CEA Saclay, CNRS, Lab Leon Brillouin, F-91191 Gif Sur Yvette, France

[3] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France

[4] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland

[5] Univ Fribourg, FriMat Ctr Nanomat, CH-1700 Fribourg, Switzerland

来源：

SCIENCE | 2008年 / 319卷 / 5863期

关键词：

D O I：

10.1126/science.1152309

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Electronic phases with symmetry properties matching those of conventional liquid crystals have recently been discovered in transport experiments on semiconductor heterostructures and metal oxides at millikelvin temperatures. We report the spontaneous onset of a one- dimensional, incommensurate modulation of the spin system in the high- transition- temperature superconductor YBa2Cu3O6.45 upon cooling below similar to 150 kelvin, whereas static magnetic order is absent above 2 kelvin. The evolution of this modulation with temperature and doping parallels that of the in- plane anisotropy of the resistivity, indicating an electronic nematic phase that is stable over a wide temperature range. The results suggest that soft spin fluctuations are a microscopic route toward electronic liquid crystals and that nematic order can coexist with high- temperature superconductivity in underdoped cuprates.

引用

页码：597 / 600

页数：4

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