180-DEGREES PHASE-SHIFT OF PHONON DRAG MAGNETOTHERMOPOWER OSCILLATIONS IN HIGH MOBILITY 2DEGS

被引：7

作者：

FROMHOLD, TM ^{[1
]}

BUTCHER, PN ^{[1
]}

QIN, G ^{[1
]}

MULIMANI, BG ^{[1
]}

OXLEY, JP ^{[1
]}

GALLAGHER, BL ^{[1
]}

机构：

[1] UNIV NOTTINGHAM,DEPT PHYS,NOTTINGHAM NG7 2RD,ENGLAND

来源：

SURFACE SCIENCE | 1992年 / 263卷 / 1-3期

关键词：

D O I：

10.1016/0039-6028(92)90333-2

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：

Calculations are made with the Landau level width gamma as the only adjustable parameter. The results show a 180-degrees phase shift when gamma < 0.06B1/2 meV because of oscillatory screening effects. They are also in agreement with new data for GaAs/AlGaAs heterojunctions over the temperature range 1-5 K when gamma = 0.5B1/2 meV.

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页码：183 / 186

页数：4

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