Electronic excitations in Bi2Sr2CaCu2O8: Fermi surface, dispersion, and absence of bilayer splitting

被引：234

作者：

Ding, H

Bellman, AF

Campuzano, JC

Randeria, M

Norman, MR

Yokoya, T

Takahashi, T

KatayamaYoshida, H

Mochiku, T

Kadowaki, K

Jennings, G

Brivio, GP

机构：

[1] UNIV ILLINOIS,DEPT PHYS,CHICAGO,IL 60607

[2] UNIV MILAN,DIPARTIMENTO FIS,I-20133 MILAN,ITALY

[3] TOHOKU UNIV,DEPT PHYS,SENDAI,MIYAGI 980,JAPAN

[4] NATL RES INST MET,TSUKUBA,IBARAKI 305,JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.76.1533

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

From a detailed study, including polarization dependence, of the normal state angle-resolved photoemission spectra for Bi2Sr2CaCu2O8, We find only one CuO2 band related feature. All other spectral features can be ascribed either to unklapps from the superlattice or to ''shadow bands.'' Even though the dispersion of the peaks looks like band theory, the line shape is anomalously broad and no evidence is found for bilayer splitting. We argue that the ''dip feature'' in the spectrum below T-c arises not from bilayer splitting, but rather from many-body effects.

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页码：1533 / 1536

页数：4

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