Interlayer conductivity in the superconductor Tl2Ba2CuO6+δ:: Energetics and energy scales

被引：42

作者：

Katz, AS

Woods, SI

Singley, EJ

Li, TW

Xu, M ^{[1
]}

Hinks, DG

Dynes, RC

Basov, DN

机构：

[1] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

[2] Argonne Natl Lab, Dept Mat Sci, Argonne, IL 60439 USA

[3] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.61.5930

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on infrared studies of the c-axis electrodynamics of Tl2Ba2CuO6+delta crystals. A sum-rule analysis reveals spectral weight shifts that can be interpreted as a kinetic energy change at the superconducting transition. In optimally doped crystals, showing an incoherent normal-state response, the kinetic energy is lowered at T<T-c, but no significant change is found in the overdoped samples, which have more coherent conductivity at T>T-c.

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页码：5930 / 5933

页数：4

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