Tunneling spectroscopy of a two-dimensionally periodic electron system

被引：3

作者：

Zolleis, KR

Ford, CJB

Kardynal, B

Ritchie, DA

Linfield, EH

Rose, PD

Jones, GAC

机构：

[1] Cavendish Lab, Cambridge CB3 0HE, England

[2] TREL, Cambridge Res Lab, Cambridge CB4 0WE, England

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 14期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.89.146803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The tunneling current between an electron gas with a periodic potential in two dimensions and a plain two-dimensional electron system (2DES) has been studied. The strength of the periodic potential, the subband energy of the plain 2DES, and an applied in-plane magnetic field were varied, mapping the Fourier transform of the periodic wave function. Periodic peaks were observed and explained by translations in the reciprocal lattice. When the potential was strongly modulated to form an array of antidots, commensurability peaks were seen in lateral transport, but, as expected, not in tunneling.

引用

收藏

页码：1 / 146803

页数：4

相关论文

共 28 条

[1] Intrinsic coupling mechanisms between two-dimensional electron systems in double quantum well structures [J].

Barnes, CHW ;

Davies, AG ;

Zolleis, KR ;

Simmons, MY ;

Ritchie, DA .

PHYSICAL REVIEW B, 1999, 59 (11) :7669-7678

[2] FABRICATION OF INDEPENDENT CONTACTS TO 2 CLOSELY SPACED 2-DIMENSIONAL ELECTRON GASES USING MOLECULAR-BEAM EPITAXY REGROWTH AND IN-SITU FOCUSED ION-BEAM LITHOGRAPHY [J].

BROWN, KM ;

LINFIELD, EH ;

RITCHIE, DA ;

JONES, GAC ;

GRIMSHAW, MP ;

CHURCHILL, AC .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1994, 12 (02) :1293-1295

[3] TUNNELING BETWEEN 2-DIMENSIONAL ELECTRON GASES IN A STRONG MAGNETIC-FIELD [J].

BROWN, KM ;

TURNER, N ;

NICHOLLS, JT ;

LINFIELD, EH ;

PEPPER, M ;

RITCHIE, DA ;

JONES, GAC .

PHYSICAL REVIEW B, 1994, 50 (20) :15465-15468

[4] Hybridization of single- and double-layer behavior in a double-quantum-well structure [J].

Davies, AG ;

Barnes, CHW ;

Zolleis, KR ;

Nicholls, JT ;

Simmons, MY ;

Ritchie, DA .

PHYSICAL REVIEW B, 1996, 54 (24) :17331-17334

[5] INDEPENDENTLY CONTACTED 2-DIMENSIONAL ELECTRON-SYSTEMS IN DOUBLE QUANTUM-WELLS [J].

EISENSTEIN, JP ;

PFEIFFER, LN ;

WEST, KW .

APPLIED PHYSICS LETTERS, 1990, 57 (22) :2324-2326

[6] COULOMB BARRIER TO TUNNELING BETWEEN PARALLEL 2-DIMENSIONAL ELECTRON-SYSTEMS [J].

EISENSTEIN, JP ;

PFEIFFER, LN ;

WEST, KW .

PHYSICAL REVIEW LETTERS, 1992, 69 (26) :3804-3807

[7] EVIDENCE FOR AN INTERLAYER EXCITON IN TUNNELING BETWEEN 2-DIMENSIONAL ELECTRON-SYSTEMS [J].

EISENSTEIN, JP ;

PFEIFFER, LN ;

WEST, KW .

PHYSICAL REVIEW LETTERS, 1995, 74 (08) :1419-1422

[8] MAGNETORESISTANCE DUE TO CHAOS AND NONLINEAR RESONANCES IN LATERAL SURFACE SUPERLATTICES [J].

FLEISCHMANN, R ;

GEISEL, T ;

KETZMERICK, R .

PHYSICAL REVIEW LETTERS, 1992, 68 (09) :1367-1370

[9] MAGNETORESISTANCE OSCILLATIONS IN A GRID POTENTIAL - INDICATION OF A HOFSTADTER-TYPE ENERGY-SPECTRUM [J].

GERHARDTS, RR ;

WEISS, D ;

WULF, U .

PHYSICAL REVIEW B, 1991, 43 (06) :5192-5195

[10] ENERGY-LEVELS AND WAVE-FUNCTIONS OF BLOCH ELECTRONS IN RATIONAL AND IRRATIONAL MAGNETIC-FIELDS [J].

HOFSTADTER, DR .

PHYSICAL REVIEW B, 1976, 14 (06) :2239-2249