DYNAMICS OF PHOTOGENERATED CHARGE-CARRIERS IN CUPRATES

被引：47

作者：

KIM, YH

CHEONG, SW

FISK, Z

机构：

[1] AT&T BELL LABS,MURRAY HILL,NJ 07974

[2] UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.67.2227

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

New results of infrared photoexcitation experiments on undoped La2CuO4 and Nd2CuO4 are reported. We observed two broad electronic excitations within the charge-transfer energy gap and an associated phonon bleaching, possibly originating from strong charge-lattice coupling. Our results are discussed in terms of the condensation of self-localized photocarriers in the CuO2 planes at low temperatures.

引用

页码：2227 / 2230

页数：4

共 23 条

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[7]

KIM VM, IN PRESS

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[10] DIRECT EVIDENCE OF THE IMPORTANCE OF ELECTRON-PHONON COUPLING IN LA2CUO4 - PHOTOINDUCED IR-ACTIVE VIBRATIONAL-MODES [J].

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