Energy relaxation and dephasing times of excited electrons in Bi2Sr2CaCu2O8+δ from interferometric 2-photon time-resolved photoemission

被引：19

作者：

Nessler, W

Ogawa, S

Nagano, H

Petek, H ^{[1
]}

Shimoyama, J

Nakayama, Y

Kishio, K

机构：

[1] Hitachi Ltd, Adv Res Lab, Hatoyama, Saitama 35003, Japan

[2] Univ Tokyo, Dept Superconduct, Bunkyo Ku, Tokyo 113, Japan

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 1998年 / 88卷

关键词：

time-resolved photoemission; Fermi liquid theory; electron-electron scattering; dephasing; high temperature superconductivity; Bi2Sr2CaCu2O8+delta;

D O I：

10.1016/S0368-2048(97)00260-0

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The electron dynamics in Bi2Sr2CaCu2O8+delta are investigated with interferometric 2-photon time-resolved photoemission. By decomposing the interferometric 2-pulse correlation into oscillating and non-oscillating components energy relaxation times can be obtained for excited electrons above the Fermi level, T-1, and dephasing times of electron-hole pairs, T-2. The procedure to determine T-1 and T-2 is discussed and first results on the electron energy relaxation time in a high temperature superconductor are presented. (C) 1998 Elsevier Science B.V.

引用

页码：495 / 501

页数：7

共 8 条

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[2]

NESSLER W, UNPUB

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