Anomalous momentum dependence of the quasiparticle scattering rate in overdoped Bi2Sr2CaCu2O8 -: art. no. 167002

被引：29

作者：

Bogdanov, PV ^{[1
]}

Lanzara, A

Zhou, XJ

Yang, WL

Eisaki, H

Hussain, Z

Shen, ZX

机构：

[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

[2] Stanford Univ, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA

[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.89.167002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The question of the anisotropy of the electron scattering in high temperature superconductors is investigated using high resolution angle-resolved photoemission data from Pb-doped Bi2Sr2CaCu2O8 (Bi2212) with suppressed superstructure. The scattering rate of low energy electrons along two bilayer-split pieces of the Fermi surface is measured (via the quasiparticle peak width), and no increase of scattering towards the antinode (pi,0) region is observed, contradicting the expectation from Q=(pi,pi) scattering. The results put a limit on the effects of Q=(pi,pi) scattering on the electronic structure of this overdoped superconductor with still very high T-c.

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页码：167002/1 / 167002/4

页数：4

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