GATED, ASYMMETRIC RINGS AS TUNABLE ELECTRON INTERFEROMETERS

被引：44

作者：

FORD, CJB ^{[1
]}

FOWLER, AB ^{[1
]}

HONG, JM ^{[1
]}

KNOEDLER, CM ^{[1
]}

LAUX, SE ^{[1
]}

WAINER, JJ ^{[1
]}

WASHBURN, S ^{[1
]}

机构：

[1] IBM CORP,THOMAS J WATSON RES CTR,YORKTOWN HTS,NY 10598

来源：

SURFACE SCIENCE | 1990年 / 229卷 / 1-3期

关键词：

D O I：

10.1016/0039-6028(90)90895-F

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have fabricated gated, asymmetric rings which, in principle, enable interference between electron waves to be varied with a gate voltage. Although close to the minimum dimensions currently achievable, the results are far from clear-cut, and imply that there are many problems to be overcome before useful devices based on quantum interference can be demonstrated, even supposing that the geometries proposed will actually work. We describe the methods used to analyse our data to show any consistent interference effects caused by the gate voltage variation. Narrower, higher-mobility devices are required in order to produce more easily-resolved gate voltage-controlled interference effects. © 1990.

引用

页码：307 / 311

页数：5

共 10 条

[1] 4-TERMINAL PHASE-COHERENT CONDUCTANCE [J].

BUTTIKER, M .

PHYSICAL REVIEW LETTERS, 1986, 57 (14) :1761-1764

[2]

BUTTIKER M, 1985, SQUID85

[3] PROPOSED STRUCTURE FOR LARGE QUANTUM INTERFERENCE EFFECTS [J].

DATTA, S ;

MELLOCH, MR ;

BANDYOPADHYAY, S ;

LUNDSTROM, MS .

APPLIED PHYSICS LETTERS, 1986, 48 (07) :487-489

[4] TUNABLE AHARONOV-BOHM EFFECT IN AN ELECTRON INTERFEROMETER [J].

DEVEGVAR, PGN ;

TIMP, G ;

MANKIEWICH, PM ;

BEHRINGER, R ;

CUNNINGHAM, J .

PHYSICAL REVIEW B, 1989, 40 (05) :3491-3494

[5] CHANNEL SENSITIVITY TO GATE ROUGHNESS IN A SPLIT-GATE GAAS-ALGAAS HETEROSTRUCTURE [J].

KUMAR, A ;

LAUX, SE ;

STERN, F .

APPLIED PHYSICS LETTERS, 1989, 54 (13) :1270-1271

[6]

LANDAUER R, UNPUB

[7] ELECTRON-STATES IN NARROW GATE-INDUCED CHANNELS IN SI [J].

LAUX, SE ;

STERN, F .

APPLIED PHYSICS LETTERS, 1986, 49 (02) :91-93

[8] ELECTRONIC SPECTROSCOPY OF ZERO-DIMENSIONAL SYSTEMS [J].

SMITH, TP ;

LEE, KY ;

KNOEDLER, CM ;

HONG, JM ;

KERN, DP .

PHYSICAL REVIEW B, 1988, 38 (03) :2172-2175

[9] PROPAGATION AROUND A BEND IN A MULTICHANNEL ELECTRON WAVE-GUIDE [J].

TIMP, G ;

BARANGER, HU ;

DEVEGVAR, P ;

CUNNINGHAM, JE ;

HOWARD, RE ;

BEHRINGER, R ;

MANKIEWICH, PM .

PHYSICAL REVIEW LETTERS, 1988, 60 (20) :2081-2084

[10] NORMAL-METAL AHARONOV-BOHM EFFECT IN THE PRESENCE OF A TRANSVERSE ELECTRIC-FIELD [J].

WASHBURN, S ;

SCHMID, H ;

KERN, D ;

WEBB, RA .

PHYSICAL REVIEW LETTERS, 1987, 59 (16) :1791-1794

← 1 →