ENERGY-LEVELS IN QUANTUM WIRES STUDIED BY TUNNELING AND MAGNETOTRANSPORT EXPERIMENTS

被引：20

作者：

HIRLER, F ^{[1
]}

SMOLINER, J ^{[1
]}

GORNIK, E ^{[1
]}

WEIMANN, G ^{[1
]}

SCHLAPP, W ^{[1
]}

机构：

[1] FORSCHUNGSINST DBP,W-6100 DARMSTADT,GERMANY

来源：

APPLIED PHYSICS LETTERS | 1990年 / 57卷 / 03期

关键词：

D O I：

10.1063/1.103708

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have studied the one-dimensional (1D) subband energies in quantum wires fabricated on GaAs-GaAlAs heterostructures. Magnetoresistance oscillations were used to investigate the influence of an applied gate voltage on the 1D subband energies for various geometrical widths of the fabricated quantum wires. For the first time, we measure directly the 1D subband energies by tunneling spectroscopy. As a result, both the confining potential and the influence of an additional magnetic field are well described by a simple harmonic oscillator model.

引用

收藏

页码：261 / 263

页数：3

相关论文

共 17 条

[1] SUBBAND SPACINGS OF QUASI-ONE-DIMENSIONAL INVERSION CHANNELS ON INSB [J].

ALSMEIER, J ;

SIKORSKI, C ;

MERKT, U .

PHYSICAL REVIEW B, 1988, 37 (08) :4314-4316

[2] CHARACTERIZATION OF VERY NARROW QUASI-ONE-DIMENSIONAL QUANTUM CHANNELS [J].

BERGGREN, KF ;

ROOS, G ;

VANHOUTEN, H .

PHYSICAL REVIEW B, 1988, 37 (17) :10118-10124

[3] MAGNETIC DEPOPULATION OF 1D SUBBANDS IN A NARROW 2D ELECTRON-GAS IN A GAAS-ALGAAS HETEROJUNCTION [J].

BERGGREN, KF ;

THORNTON, TJ ;

NEWSON, DJ ;

PEPPER, M .

PHYSICAL REVIEW LETTERS, 1986, 57 (14) :1769-1772

[4] ONE-DIMENSIONAL SUBBANDS OF NARROW ELECTRON CHANNELS IN GATED ALXGA1-XAS GAAS HETEROJUNCTIONS [J].

BRINKOP, F ;

HANSEN, W ;

KOTTHAUS, JP ;

PLOOG, K .

PHYSICAL REVIEW B, 1988, 37 (11) :6547-6550

[5] NEW HIGH-RESOLUTION CONDUCTANCE BRIDGE FOR TUNNELLING SPECTROSCOPY [J].

CHRISTANELL, R ;

SMOLINER, J .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1988, 59 (08) :1290-1293

[6] FAR-INFRARED RESPONSE OF ONE-DIMENSIONAL ELECTRONIC SYSTEMS IN SINGLE-LAYERED AND 2-LAYERED QUANTUM WIRES [J].

DEMEL, T ;

HEITMANN, D ;

GRAMBOW, P ;

PLOOG, K .

PHYSICAL REVIEW B, 1988, 38 (17) :12732-12735

[7]

DEMEL T, 1989, SUPERLATTICE MICROST, V5, P286

[8] INTERSUBBAND RESONANCE IN QUASI ONE-DIMENSIONAL INVERSION CHANNELS [J].

HANSEN, W ;

HORST, M ;

KOTTHAUS, JP ;

MERKT, U ;

SIKORSKI, C ;

PLOOG, K .

PHYSICAL REVIEW LETTERS, 1987, 58 (24) :2586-2589

[9] ONE-DIMENSIONAL SUBBANDS AND MOBILITY MODULATION IN GAAS ALGAAS QUANTUM WIRES [J].

ISMAIL, K ;

ANTONIADIS, DA ;

SMITH, HI .

APPLIED PHYSICS LETTERS, 1989, 54 (12) :1130-1132

[10] QUANTUM SIZE EFFECTS IN GAAS-GA1-XALXAS HETEROJUNCTION WIRES [J].

LAKRIMI, M ;

GRASSIE, ADC ;

HUTCHINGS, KM ;

HARRIS, JJ ;

FOXON, CT .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1989, 4 (04) :313-316