DIRECT MAPPING OF ELECTRONIC-STRUCTURE ACROSS AL0.3GA0.7AS/GAAS HETEROJUNCTIONS - BAND OFFSETS, ASYMMETRICAL TRANSITION WIDTHS, AND MULTIPLE-VALLEY BAND STRUCTURES

被引：54

作者：

GWO, S

CHAO, KJ

SHIH, CK

SADRA, K

STREETMAN, BG

机构：

[1] UNIV TEXAS, MICROELECTR RES CTR, AUSTIN, TX 78712 USA

[2] UNIV TEXAS, DEPT ELECT & COMP ENGN, AUSTIN, TX 78712 USA

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.71.1883

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By using the prototypical Al0.3Ga0.7As/GaAs system, we demonstrate the unique capability of scanning tunneling microscopy to directly map out detailed electronic structure across heterojunctions. Three novel applications are reported: (1) precise determination of band offsets, (2) measurement of asymmetrical electronic transition widths between the normal and inverted interfaces, and (3) mapping of multiple-valley band structures. Important implications of these results are discussed.

引用

页码：1883 / 1886

页数：4

共 23 条

[1] GAAS, ALAS, AND ALXGA1-XAS - MATERIAL PARAMETERS FOR USE IN RESEARCH AND DEVICE APPLICATIONS
ADACHI, S
[J]. JOURNAL OF APPLIED PHYSICS, 1985, 58 (03) : R1 - R29
[2] TUNNELING MICROSCOPY AND SPECTROSCOPY OF MOLECULAR-BEAM EPITAXY GROWN GAAS-ALGAAS INTERFACES
ALBREKTSEN, O
ARENT, DJ
MEIER, HP
SALEMINK, HWM
[J]. APPLIED PHYSICS LETTERS, 1990, 57 (01) : 31 - 33
[3] OBSERVATION OF INTERFACE BAND-STRUCTURE BY BALLISTIC-ELECTRON-EMISSION MICROSCOPY
BELL, LD
KAISER, WJ
[J]. PHYSICAL REVIEW LETTERS, 1988, 61 (20) : 2368 - 2371
[4] P2S5 PASSIVATION OF GAAS-SURFACES FOR SCANNING TUNNELING MICROSCOPY IN AIR
DAGATA, JA
TSENG, W
BENNETT, J
SCHNEIR, J
HARARY, HH
[J]. APPLIED PHYSICS LETTERS, 1991, 59 (25) : 3288 - 3290
[5] IMAGING OF PASSIVATED III-V-SEMICONDUCTOR SURFACES BY A SCANNING TUNNELING MICROSCOPE OPERATING IN AIR
DAGATA, JA
TSENG, W
BENNETT, J
SCHNEIR, J
HARARY, HH
[J]. ULTRAMICROSCOPY, 1992, 42 : 1288 - 1294
[6] CROSS-SECTIONAL IMAGING AND SPECTROSCOPY OF GAAS DOPING SUPERLATTICES BY SCANNING TUNNELING MICROSCOPY
FEENSTRA, RM
YU, ET
WOODALL, JM
KIRCHNER, PD
LIN, CL
PETTIT, GD
[J]. APPLIED PHYSICS LETTERS, 1992, 61 (07) : 795 - 797
[7] TUNNELING SPECTROSCOPY OF THE GAAS(110) SURFACE
FEENSTRA, RM
STROSCIO, JA
[J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1987, 5 (04): : 923 - 929
[8] FEENSTRA RM, 1992, IN PRESS P C PHYSICA
[9] SCANNING TUNNELING MICROSCOPY OF GAAS MULTIPLE PN JUNCTIONS
GWO, S
SMITH, AR
SHIH, CK
SADRA, K
STREETMAN, BG
[J]. APPLIED PHYSICS LETTERS, 1992, 61 (09) : 1104 - 1106
[10] SCANNING-TUNNELING-MICROSCOPY OF DOPING AND COMPOSITIONAL III-V HOMOSTRUCTURES AND HETEROSTRUCTURES
GWO, S
CHAO, KJ
SMITH, AR
SHIH, CK
SADRA, K
STREETMAN, BG
[J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1993, 11 (04): : 1509 - 1513

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