Electronic excitations near the Brillouin zone boundary of Bi2Sr2CaCu2O8+δ -: art. no. 220501

被引：36

作者：

Feng, DL

Kim, C

Eisaki, H

Lu, DH

Damascelli, A

Shen, KM

Ronning, F

Armitage, NP

Kaneko, N

Greven, M

Shimoyama, J

Kishio, K

Yoshizaki, R

Gu, GD

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] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China

[4] Univ Tokyo, Dept Appl Chem, Tokyo 1138656, Japan

[5] Univ Tsukuba, Inst Appl Phys, Tsukuba, Ibaraki 305, Japan

[6] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 22期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.65.220501

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on angle resolved photoemission spectra measured on different systems at different dopings, momenta, and photon energies, we show that the anomalously large spectral linewidth in the (pi,0) region of optimal doped and underdoped Bi2Sr2CaCu2O8+delta has significant contributions from the bilayer band splitting, and that the scattering rate in this region is considerably smaller than previously estimated. This picture of the electronic excitation near (pi,0) puts additional experimental constraints on various microscopic theories and data analyses.

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页码：1 / 4

页数：4

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