ACOUSTIC EXCITATIONS OF A CONFINED 2-DIMENSIONAL ELECTRON LIQUID IN A MAGNETIC-FIELD

被引：39

作者：

ALEINER, IL

YUE, DX

GLAZMAN, LI

机构：

[1] Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.51.13467

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the low-frequency excitations of a compressible electron liquid confined to a strip and subjected to a magnetic field. Using the classical equations of motion, we show the existence of gapless excitations additional to the conventional one-dimensional plasmon. These excitations are shown to have linear spectra. In contrast to the plasmon mode, the velocities of these modes increase with the magnetic field in the weak-field domain, reaching a maximum at a certain field strength. The calculated oscillator strengths and the estimate for the damping rates enable us to discuss the optimal experimental setup for the observation of the acoustic modes. © 1995 The American Physical Society.

引用

页码：13467 / 13474

页数：8

共 27 条

[1]

ABRAMOWITZ M, 1984, HDB MATH FUNCTIONS F

[2] NOVEL EDGE EXCITATIONS OF 2-DIMENSIONAL ELECTRON LIQUID IN A MAGNETIC-FIELD [J].

ALEINER, IL ;

GLAZMAN, LI .

PHYSICAL REVIEW LETTERS, 1994, 72 (18) :2935-2938

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

ANDO, T ;

FOWLER, AB ;

STERN, F .

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

[4] LOW-FREQUENCY COLLECTIVE EXCITATIONS IN THE QUANTUM-HALL SYSTEM [J].

ANDREI, EY ;

GLATTLI, DC ;

WILLIAMS, FIB ;

HEIBLUM, M .

SURFACE SCIENCE, 1988, 196 (1-3) :501-506

[5] EDGE MAGNETOPLASMONS IN THE TIME DOMAIN [J].

ASHOORI, RC ;

STORMER, HL ;

PFEIFFER, LN ;

BALDWIN, KW ;

WEST, K .

PHYSICAL REVIEW B, 1992, 45 (07) :3894-3897

[6] EDGE CHANNELS FOR THE FRACTIONAL QUANTUM HALL-EFFECT [J].

BEENAKKER, CWJ .

PHYSICAL REVIEW LETTERS, 1990, 64 (02) :216-219

[7] MAGNETOPLASMONS IN A TWO-DIMENSIONAL ELECTRON-GAS - STRIP GEOMETRY [J].

CATAUDELLA, V ;

IADONISI, G .

PHYSICAL REVIEW B, 1987, 35 (14) :7443-7449

[8] A UNIFIED TRANSPORT-THEORY FOR THE INTEGRAL AND FRACTIONAL QUANTUM HALL-EFFECTS - PHASE BOUNDARIES, EDGE CURRENTS, AND TRANSMISSION REFLECTION PROBABILITIES [J].

CHANG, AM .

SOLID STATE COMMUNICATIONS, 1990, 74 (09) :871-876

[9] BALLISTIC CONDUCTANCE OF INTERACTING ELECTRONS IN THE QUANTUM HALL REGIME [J].

CHKLOVSKII, DB ;

MATVEEV, KA ;

SHKLOVSKII, BI .

PHYSICAL REVIEW B, 1993, 47 (19) :12605-12617

[10] ELECTROSTATICS OF EDGE CHANNELS [J].

CHKLOVSKII, DB ;

SHKLOVSKII, BI ;

GLAZMAN, LI .

PHYSICAL REVIEW B, 1992, 46 (07) :4026-4034

← 1 2 3 →