REFLECTIVITY OF BA2YCU3O7-DELTA - NORMAL STATE DYNAMICS

被引：33

作者：

ORENSTEIN, J

THOMAS, GA

RAPKINE, DH

MILLIS, AJ

SCHNEEMEYER, LF

WASZCZAK, JV

机构：

[1] AT&T Bell Lab, United States

来源：

PHYSICA C | 1988年 / 153卷 / 02期

关键词：

Ceramic Materials;

D O I：

10.1016/0921-4534(88)90464-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Measurements of reflectivity, R, as a function of temperature, T, and frequency, ω, in crystals of Ba2YCu3O7-δ, with δ0.1, 0.3, and 0.8, are reported. The frequency dependent conductivity, σ(O,T). To explain the shape of σ(ω,T) requires the quasiparticle mass and lifetime to be strongly ω-dependent, with /τ2kB and m*/m07 at low ω, crossing over to /τ0.35 ev and m*/m01 for ω>0.3 ev.

引用

页码：1740 / 1743

页数：4

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