RESONANT RAMAN-SCATTERING IN [111] GAAS/ALAS SHORT-PERIOD SUPERLATTICES

被引：8

作者：

CALLE, F ^{[1
]}

MOWBRAY, DJ ^{[1
]}

NILES, DW ^{[1
]}

CARDONA, M ^{[1
]}

CALLEJA, JM ^{[1
]}

PLOOG, K ^{[1
]}

机构：

[1] UNIV AUTONOMA MADRID,DEPT FIS APLICADA,E-28049 MADRID,SPAIN

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.43.9152

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Resonant Raman scattering has been used to study short-period GaAs/AlAs superlattices grown along the [111] direction. Samples with moderately large periods (wells and barriers greater than 9 monolayers) show a direct band gap, while for a (6,6) monolayer sample the lowest-energy transition appears to be indirect in k space (but direct in real space), occurring between the GaAs GAMMA and L states. Confined optical phonons are clearly observed in resonant conditions, both for GaAs and AlAs; they yield information about the bulk optical-phonon dispersions of these materials along the GAMMA-L direction.

引用

页码：9152 / 9157

页数：6

共 39 条

[31] OPTICAL-PROPERTIES OF GAAS/ALGAAS MULTIPLE QUANTUM WELLS GROWN IN THE [111] CRYSTALLOGRAPHIC DIRECTION
SHANABROOK, BV
GLEMBOCKI, OJ
BROIDO, DA
VINA, L
WANG, WI
[J]. JOURNAL DE PHYSIQUE, 1987, 48 (C-5): : 235 - 238
[32] RESONANCE RAMAN-SCATTERING BY CONFINED LO AND TO PHONONS IN GAAS-ALAS SUPERLATTICES - RESPONSE
SOOD, AK
MENENDEZ, J
CARDONA, M
PLOOG, K
[J]. PHYSICAL REVIEW LETTERS, 1986, 56 (16) : 1753 - 1753
[33] RESONANCE RAMAN-SCATTERING BY CONFINED LO AND TO PHONONS IN GAAS-ALAS SUPERLATTICES
SOOD, AK
MENENDEZ, J
CARDONA, M
PLOOG, K
[J]. PHYSICAL REVIEW LETTERS, 1985, 54 (19) : 2111 - 2114
[34] PHONON-DISPERSION IN GAAS
STRAUCH, D
DORNER, B
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1990, 2 (06) : 1457 - 1474
[35] IMPROVED ASSESSMENT OF STRUCTURAL-PROPERTIES OF ALXGA1-XAS/GAAS HETEROSTRUCTURES AND SUPERLATTICES BY DOUBLE-CRYSTAL X-RAY-DIFFRACTION
TAPFER, L
PLOOG, K
[J]. PHYSICAL REVIEW B, 1986, 33 (08): : 5565 - 5574
[36] ONE-PHONON RESONANT RAMAN-SCATTERING - FROHLICH EXCITON-PHONON INTERACTION
TRALLEROGINER, C
CANTARERO, A
CARDONA, M
[J]. PHYSICAL REVIEW B, 1989, 40 (06): : 4030 - 4036
[37] PHONONS IN GAAS/ALAS SUPERLATTICES
TSUCHIYA, T
AKERA, H
ANDO, T
[J]. PHYSICAL REVIEW B, 1989, 39 (09): : 6025 - 6033
[38] ALGAAS/GAAS(111) HETEROSTRUCTURES GROWN BY MOLECULAR-BEAM EPITAXY
VINA, L
WANG, WI
[J]. APPLIED PHYSICS LETTERS, 1986, 48 (01) : 36 - 37
[39] ELECTRONIC-STRUCTURES AND OPTICAL-PROPERTIES OF SHORT-PERIOD GAAS/ALAS SUPERLATTICES
XIA, JB
CHANG, YC
[J]. PHYSICAL REVIEW B, 1990, 42 (03): : 1781 - 1790

← 1 2 3 4 →