Phase diagram of La2-xSrxCuO4 probed in the infared:: Imprints of charge stripe excitations -: art. no. 037002

被引：74

作者：

Lucarelli, A

Lupi, S

Ortolani, M

Calvani, P

Maselli, P

Capizzi, M

Giura, P

Eisaki, H

Kikugawa, N

Fujita, T

Fujita, M

Yamada, K

机构：

[1] Univ Roma La Sapienza, Coherentia INFM, I-00185 Rome, Italy

[2] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[3] ESRF, Grenoble, France

[4] Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA

[5] Hiroshima Univ, ADSM, Higashihiroshima 7398526, Japan

[6] Kyoto Univ, Inst Chem Res, Uji 6100011, Japan

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.90.037002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

While there is increasing evidence for antiferromagnetic (AF) ordering in the Cu-O planes of high-T-c superconductors, either static or fluctuating, there is no direct evidence so far for the charge stripes that should separate the AF domains. By investigating the optical response of La2-xSrxCuO4 for 0 less than or equal to x less than or equal to 0.26 and 30 less than or equal to T less than or equal to 295 K, we identify strong far infrared peaks whose energy, width, and intensity are consistent with a scenario of charge stripe dynamics in the Cu-O planes.

引用

页数：4

共 29 条

[1] Anomalous isotopic effect near the charge-ordering quantum criticality [J].