Strong effect of resonant impurities on Landau-level quantization

被引：9

作者：

Allison, G.

Mori, N.

Patane, A. ^{[1
]}

Endicott, J.

Eaves, L.

Maude, D. K.

Hopkinson, M.

机构：

[1] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England

[2] Osaka Univ, Dept Elect Engn, Suita, Osaka 5650871, Japan

[3] CNRS, High Field Magnet Lab, F-38042 Grenoble, France

[4] Univ Sheffield, Dept Elect & Elect Engn, Sheffield S3 3JD, S Yorkshire, England

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.96.236802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate experimentally the effect of a random distribution of nitrogen (N) impurities on the Landau-level spectrum of a GaAs quantum well. Our magnetotunneling study reveals complex and nonequally spaced Landau levels and a quenching of the Landau states at a well-defined bias and electron energy which is resonant with that of the N atoms. Analysis of the magnetic field dependence of the tunnel current into the Landau levels of the well also provides quantitative information about the nonresonant component of the N-related scattering potential.

引用

收藏

页数：4

相关论文

共 19 条

[1] Band-structure engineering to control impact ionisation and related high-field processes [J].

Adams, AR .

ELECTRONICS LETTERS, 2004, 40 (17) :1086-1088

[2] ELECTRONIC-PROPERTIES OF TWO-DIMENSIONAL SYSTEMS [J].

ANDO, T ;

FOWLER, AB ;

STERN, F .

REVIEWS OF MODERN PHYSICS, 1982, 54 (02) :437-672

[3] PROPERTIES OF THE DISORDERED TWO-DIMENSIONAL ELECTRON-GAS IN A STRONG MAGNETIC-FIELD [J].

BENEDICT, KA ;

CHALKER, JT .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1985, 18 (20) :3981-3991

[4] AN EXACTLY SOLVABLE MODEL OF THE DISORDERED TWO-DIMENSIONAL ELECTRON-GAS IN A STRONG MAGNETIC-FIELD [J].

BENEDICT, KA ;

CHALKER, JT .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1986, 19 (19) :3587-3604

[5]

GOBATO YG, 1991, PHYS REV B, V44, P13795, DOI 10.1103/PhysRevB.44.13795

[6] EFFECT OF REPULSIVE AND ATTRACTIVE SCATTERING CENTERS ON THE MAGNETOTRANSPORT PROPERTIES OF A TWO-DIMENSIONAL ELECTRON-GAS [J].

HAUG, RJ ;

GERHARDTS, RR ;

VONKLITZING, K ;

PLOOG, K .

PHYSICAL REVIEW LETTERS, 1987, 59 (12) :1349-1352

[7] Hybridization of electronic states in quantum dots through photon emission [J].

Karrai, K ;

Warburton, RJ ;

Schulhauser, C ;

Högele, A ;

Urbaszek, B ;

McGhee, EJ ;

Govorov, AO ;

Garcia, JM ;

Gerardot, BD ;

Petroff, PM .

NATURE, 2004, 427 (6970) :135-138

[8] Theory of electronic structure evolution in GaAsN and GaPN alloys [J].

Kent, PRC ;

Zunger, A .

PHYSICAL REVIEW B, 2001, 64 (11)

[9] INTER-LANDAU-LEVEL TRANSITIONS OF RESONANTLY TUNNELING ELECTRONS IN TILTED MAGNETIC-FIELDS [J].

LEADBEATER, ML ;

SHEARD, FW ;

EAVES, L .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1991, 6 (10) :1021-1024

[10] MAGNETIC-FIELD STUDIES OF ELASTIC-SCATTERING AND OPTIC-PHONON EMISSION IN RESONANT-TUNNELING DEVICES [J].

LEADBEATER, ML ;

ALVES, ES ;

EAVES, L ;

HENINI, M ;

HUGHES, OH ;

CELESTE, A ;

PORTAL, JC ;

HILL, G ;

PATE, MA .

PHYSICAL REVIEW B, 1989, 39 (05) :3438-3441