Anisotropic charge modulation in ladder planes of Sr14-xCaxCu24O41 -: art. no. 012508

被引：24

作者：

Vuletic, T

Ivek, T

Korin-Hamzic, B

Tomic, S

Gorshunov, B

Haas, P

Dressel, M

Akimitsu, J

Sasaki, T

Nagata, T

机构：

[1] Inst Fiz, HR-10001 Zagreb, Croatia

[2] Univ Stuttgart, Inst Phys 1, D-70550 Stuttgart, Germany

[3] Aoyama Gakuin Univ, Dept Phys, Kanagawa, Japan

[4] Russian Acad Sci, Inst Gen Phys, Moscow, Russia

来源：

PHYSICAL REVIEW B | 2005年 / 71卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.71.012508

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The charge response of the ladders in Sr14-xCaxCu24O41 is characterized by dc resistivity, low frequency dielectric, and optical spectroscopy in all three crystallographic directions. The collective charge-density wave screened mode is observed in the direction of the rungs for x=0, 3, and 6, in addition to the mode along the legs. For x=8 and 9, the charge-density-wave response along the rungs fully vanishes, while the one along the legs persists. The transport perpendicular to the planes is always dominated by hopping.

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页数：4

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