Shadow bands in overdoped Bi2Sr2CaCu2O8+x

被引：16

作者：

LaRosa, S

Kelley, RJ

Kendziora, C

Margaritondo, G

Onellion, M

Chubukov, A

机构：

[1] UNIV WISCONSIN, DEPT PHYS, MADISON, WI 53706 USA

[2] USN, RES LAB, WASHINGTON, DC 20375 USA

[3] PL KAPITZA PHYS PROBLEMS INST, MOSCOW, RUSSIA

来源：

SOLID STATE COMMUNICATIONS | 1997年 / 104卷 / 08期

关键词：

D O I：

10.1016/S0038-1098(97)00378-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We performed angle-resolved photoemission experiments on overdoped single crystal Bi2Sr2CaCu2O8+x samples with Tc values as low as 55K and very narrow transitions as measured by AC susceptibility. The photoemission data indicate the presence of a ''shadow'' peak in the quasiparticle spectral function A(omega) shifted by (pi, pi) from the conventional quasiparticle peak. The ratio of the shadow/quasiparticle peak amplitudes strongly increases with the binding energy. This is consistent with the idea that the shadow peak is not a structural replica of the quasiparticle peak, but rather a maximum in a spectral function which can exist due to interaction with spin fluctuations peaked at (pi, pi). (C) 1997 Published by Elsevier Science Ltd.

引用

页码：459 / 464

页数：6

共 33 条

[1] COMPLETE FERMI-SURFACE MAPPING OF BI2SR2CACU2O8+X(001) - COEXISTENCE OF SHORT-RANGE ANTIFERROMAGNETIC CORRELATIONS AND METALLICITY IN THE SAME PHASE - REPLY [J].