TEMPERATURE-DEPENDENCE OF THE AMPLITUDE OF THE SHUBNIKOV-DEHAAS OSCILLATIONS IN A 2-DIMENSIONAL ELECTRON-GAS

被引：3

作者：

BLOM, FAP

FONTEIN, PF

WOLTER, JH

PEETERS, FM

WU, X

GEERINCKX, F

DEVREESE, JT

机构：

[1] UNIV INSTELLING ANTWERP,DEPT PHYS,B-2610 WILRIJK,BELGIUM

[2] ANTWERP STATE UNIV CTR,B-2020 ANTWERP,BELGIUM

来源：

SURFACE SCIENCE | 1990年 / 229卷 / 1-3期

关键词：

D O I：

10.1016/0039-6028(90)90836-W

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：

Shubnikov-de Haas measurements have been performed on a high-mobility AlxGa1-xAs/GaAs heterostructure as a function of temperature (1.7≤T≤4.2 K) and magnetic field strength (0.25 ≤B≤0.70T). The temperature dependence of the amplitude of the Shubnikov-de Haas oscillations is used to define an effective mass of the two-dimensional electron gas. This apparent mass depends strongly on temperature and magnetic field and decreases to values much smaller than that for the cyclotron mass. The apparent mass shows a scaling behavior as a function of the dimensionless quantity kBT h {combining short stroke overlay}ωc. © 1990.

引用

收藏

页码：70 / 72

页数：3

相关论文

共 10 条

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

ANDO, T ;

FOWLER, AB ;

STERN, F .

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

[2] THEORY OF QUANTUM TRANSPORT IN A 2-DIMENSIONAL ELECTRON-SYSTEM UNDER MAGNETIC-FIELDS .4. OSCILLATORY CONDUCTIVITY [J].

ANDO, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1974, 37 (05) :1233-1237

[3] SINGLE-PARTICLE RELAXATION-TIME VERSUS SCATTERING TIME IN AN IMPURE ELECTRON-GAS [J].

DASSARMA, S ;

STERN, F .

PHYSICAL REVIEW B, 1985, 32 (12) :8442-8444

[4] EFFECTIVE MASS AND COLLISION TIME OF (100) SI SURFACE ELECTRONS [J].

FANG, FF ;

FOWLER, AB ;

HARTSTEIN, A .

PHYSICAL REVIEW B, 1977, 16 (10) :4446-4454

[5]

GALCHENKOV DV, 1984, JETP LETT+, V40, P1228

[6] QUANTUM-THEORY OF MAGNETOTRANSPORT IN TWO-DIMENSIONAL SYSTEMS WITH ELECTRON IMPURITY, ELECTRON PHONON AND ELECTRON ELECTRON INTERACTIONS [J].

GRABOWSKI, M ;

MADHUKAR, A .

SURFACE SCIENCE, 1982, 113 (1-3) :273-276

[7] QUANTUM AND CLASSICAL MOBILITY DETERMINATION OF THE DOMINANT SCATTERING MECHANISM IN THE TWO-DIMENSIONAL ELECTRON-GAS OF AN ALGAAS/GAAS HETEROJUNCTION [J].

HARRANG, JP ;

HIGGINS, RJ ;

GOODALL, RK ;

JAY, PR ;

LAVIRON, M ;

DELESCLUSE, P .

PHYSICAL REVIEW B, 1985, 32 (12) :8126-8135

[8] PARABOLIC MAGNETORESISTANCE FROM THE INTERACTION EFFECT IN A TWO-DIMENSIONAL ELECTRON-GAS [J].

PAALANEN, MA ;

TSUI, DC ;

HWANG, JCM .

PHYSICAL REVIEW LETTERS, 1983, 51 (24) :2226-2229

[9] TWO-DIMENSIONAL MAGNETOTRANSPORT IN THE EXTREME QUANTUM LIMIT [J].

TSUI, DC ;

STORMER, HL ;

GOSSARD, AC .

PHYSICAL REVIEW LETTERS, 1982, 48 (22) :1559-1562

[10]

VONKLITZING K, 1980, PHYS REV LETT, V45, P494, DOI 10.1103/PhysRevLett.45.494