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

[1] INFRARED EVIDENCE FOR GAP ANISOTROPY IN YBA2CU3O7
COLLINS, RT
SCHLESINGER, Z
HOLTZBERG, F
FEILD, C
[J]. PHYSICAL REVIEW LETTERS, 1989, 63 (04) : 422 - 425
[2] PHOTOINDUCED SELF-LOCALIZED POLARONS IN TL2BA2CA(1-X)GDXCU2O8 - A PROPOSAL FOR VANDERWAALS PAIRING
FOSTER, CM
HEEGER, AJ
STUCKY, G
HERRON, N
[J]. SOLID STATE COMMUNICATIONS, 1989, 71 (11) : 945 - 948
[3] PHOTOEXCITATIONS IN LA2CUO4 - 2-EV ENERGY-GAP AND LONG-LIVED DEFECT STATES
GINDER, JM
ROE, MG
SONG, Y
MCCALL, RP
GAINES, JR
EHRENFREUND, E
EPSTEIN, AJ
[J]. PHYSICAL REVIEW B, 1988, 37 (13): : 7506 - 7509
[4] RAMAN-STUDY OF PURE AND CE DOPED SINGLE-CRYSTALS OF ND2CUO4-Y
HADJIEV, VG
KOSTADINOV, IZ
BOZUKOV, L
DINOLOVA, E
MATEEV, DM
[J]. SOLID STATE COMMUNICATIONS, 1989, 71 (12) : 1093 - 1097
[5] SOLITONS IN CONDUCTING POLYMERS
HEEGER, AJ
KIVELSON, S
SCHRIEFFER, JR
SU, WP
[J]. REVIEWS OF MODERN PHYSICS, 1988, 60 (03) : 781 - 850
[6] IN A CLEAN HIGH-TC SUPERCONDUCTOR YOU DO NOT SEE THE GAP
KAMARAS, K
HERR, SL
PORTER, CD
TACHE, N
TANNER, DB
ETEMAD, S
VENKATESAN, T
CHASE, E
INAM, A
WU, XD
HEGDE, MS
DUTTA, B
[J]. PHYSICAL REVIEW LETTERS, 1990, 64 (01) : 84 - 87
[7] KIM VM, IN PRESS
[8] FAR-INFRARED ABSORPTION BY SMALL PARTICLES
KIM, YH
TANNER, DB
[J]. PHYSICA A, 1989, 157 (01): : 388 - 394
[9] PHOTOGENERATION OF SELF-LOCALIZED POLARONS IN YBA2CU3O7-DELTA AND LA2CUO4
KIM, YH
FOSTER, CM
HEEGER, AJ
COX, S
ACEDO, L
STUCKY, G
[J]. PHYSICA SCRIPTA, 1989, T27 : 19 - 23
[10] DIRECT EVIDENCE OF THE IMPORTANCE OF ELECTRON-PHONON COUPLING IN LA2CUO4 - PHOTOINDUCED IR-ACTIVE VIBRATIONAL-MODES
KIM, YH
HEEGER, AJ
ACEDO, L
STUCKY, G
WUDL, F
[J]. PHYSICAL REVIEW B, 1987, 36 (13): : 7252 - 7255

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