DENSITY-OF-STATES OF LOCALIZED PHONONS IN A PINNED WIGNER CRYSTAL

被引：14

作者：

ALEINER, IL ^{[1
]}

RUZIN, IM ^{[1
]}

机构：

[1] UNIV MINNESOTA,INST THEORET PHYS,MINNEAPOLIS,MN 55455

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.72.1056

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the method of optimal fluctuation, we investigate the asymptotic behavior of the phonon density of states in the low-frequency limit omega -> 0. If the pinning potential is not too strong, both the density of states g(omega) and the ac conductivity at zero temperature sigma(omega) are found to be proportional to omega(4). This power law is valid in both one- and two-dimensional crystal and does not change in the presence of magnetic field.

引用

页码：1056 / 1059

页数：4

共 15 条

[1] OBSERVATION OF A MAGNETICALLY INDUCED WIGNER SOLID [J].

ANDREI, EY ;

DEVILLE, G ;

GLATTLI, DC ;

WILLIAMS, FIB ;

PARIS, E ;

ETIENNE, B .

PHYSICAL REVIEW LETTERS, 1988, 60 (26) :2765-2768

[2] MAGNETIC-FIELD INDUCED TRANSITIONS BETWEEN QUANTIZED HALL AND INSULATOR STATES IN A DILUTE 2D ELECTRON-GAS [J].

DIORIO, M ;

PUDALOV, VM ;

SEMENCHINSKY, SG .

PHYSICS LETTERS A, 1990, 150 (8-9) :422-426

[3] CONDUCTIVITY OF 1-D CDW AT WEAK IMPURITY PINNING AND THE PROBLEM OF LOCALIZATION IN THE PRESENCE OF INTERACTIONS [J].

FEIGELMAN, MV ;

VINOKUR, VM .

PHYSICS LETTERS A, 1981, 87 (1-2) :53-60

[4] DYNAMICS OF CHARGE-DENSITY WAVE .1. IMPURITY PINNING IN A SINGLE CHAIN [J].

FUKUYAMA, H ;

LEE, PA .

PHYSICAL REVIEW B, 1978, 17 (02) :535-541

[5] PINNING AND CONDUCTIVITY OF 2-DIMENSIONAL CHARGE-DENSITY WAVES IN MAGNETIC-FIELDS [J].

FUKUYAMA, H ;

LEE, PA .

PHYSICAL REVIEW B, 1978, 18 (11) :6245-6252

[6] LOCALIZED STATES IN GLASSES [J].

GALPERIN, YM ;

KARPOV, VG ;

KOZUB, VI .

ADVANCES IN PHYSICS, 1989, 38 (06) :669-737

[7] EVIDENCE FOR 2-DIMENSIONAL QUANTUM WIGNER CRYSTAL [J].

GOLDMAN, VJ ;

SANTOS, M ;

SHAYEGAN, M ;

CUNNINGHAM, JE .

PHYSICAL REVIEW LETTERS, 1990, 65 (17) :2189-2192

[8]

GORKOV LP, 1977, JETP LETT+, V25, P358

[9] RANDOM-FIELD INSTABILITY OF ORDERED STATE OF CONTINUOUS SYMMETRY [J].

IMRY, Y ;

MA, S .

PHYSICAL REVIEW LETTERS, 1975, 35 (21) :1399-1401

[10] QUANTUM LIQUID VERSUS ELECTRON SOLID AROUND V=1/5 LANDAU-LEVEL FILLING [J].

JIANG, HW ;

WILLETT, RL ;

STORMER, HL ;

TSUI, DC ;

PFEIFFER, LN ;

WEST, KW .

PHYSICAL REVIEW LETTERS, 1990, 65 (05) :633-636

← 1 2 →