Local conduction band offset of GaSb self-assembled quantum dots on GaAs

被引：36

作者：

Rubin, ME

Blank, HR

Chin, MA

Kroemer, H

Narayanamurti, V

机构：

[1] Ctr. for Quantized Electron. Struct., University of California, Santa Barbara

来源：

APPLIED PHYSICS LETTERS | 1997年 / 70卷 / 12期

关键词：

D O I：

10.1063/1.118624

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

GaSb self-assembled quantum dots grown by molecular beam epitaxy on GaAs exhibit a staggered (type II) band lineup with a potential barrier in the conduction band. Traditional methods cannot measure this local band offset because of the small (similar to 50 nm) lateral dot size. The nanometer resolution of ballistic electron emission microscopy is exploited To image individual dots and measure a local band offset of 0.08+/-0.02 eV. (C) 1997 American Institute of Physics.

引用

页码：1590 / 1592

页数：3

共 12 条

[1]

Bell LD, 1996, ANNU REV MATER SCI, V26, P189

[2]

Bennett BR, 1996, APPL PHYS LETT, V68, P505, DOI 10.1063/1.116381

[3]

BOZEK R, 1995, ACTA PHYS POL A, V88, P974

[4] Photoluminescence studies of self-assembled InSb, GaSb, and AlSb quantum dot heterostructures [J].

Glaser, ER ;

Bennett, BR ;

Shanabrook, BV ;

Magno, R .

APPLIED PHYSICS LETTERS, 1996, 68 (25) :3614-3616

[5] RADIATIVE RECOMBINATION IN TYPE-II GASB/GAAS QUANTUM DOTS [J].

HATAMI, F ;

LEDENTSOV, NN ;

GRUNDMANN, M ;

BOHRER, J ;

HEINRICHSDORFF, F ;

BEER, M ;

BIMBERG, D ;

RUVIMOV, SS ;

WERNER, P ;

GOSELE, U ;

HEYDENREICH, J ;

RICHTER, U ;

IVANOV, SV ;

MELTSER, BY ;

KOPEV, PS ;

ALFEROV, ZI .

APPLIED PHYSICS LETTERS, 1995, 67 (05) :656-658

[6]

Kane E. O., 1969, Tunneling phenomena in solids, P1

[7] Conduction band offsets in ordered-GaInP/GaAs heterostructures studied by ballistic-electron-emission microscopy [J].

OShea, JJ ;

Reaves, CM ;

DenBaars, SP ;

Chin, MA ;

Narayanamurti, V .

APPLIED PHYSICS LETTERS, 1996, 69 (20) :3022-3024

[8] MEASUREMENT OF HETEROJUNCTION BAND OFFSETS USING BALLISTIC-ELECTRON-EMISSION MICROSCOPY [J].

OSHEA, JJ ;

SAJOTO, T ;

BHARGAVA, S ;

LEONARD, D ;

CHIN, MA ;

NARAYANAMURTI, V .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1994, 12 (04) :2625-2628

[9]

Prietsch M., 1995, Physics Reports, V253, P163, DOI 10.1016/0370-1573(94)00082-E

[10] Imaging and spectroscopy elf single InAs self-assembled quantum dots using ballistic electron emission microscopy [J].

Rubin, ME ;

MedeirosRibeiro, G ;

OShea, JJ ;

Chin, MA ;

Lee, EY ;

Petroff, PM ;

Narayanamurti, V .

PHYSICAL REVIEW LETTERS, 1996, 77 (26) :5268-5271

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