SPIN-REVERSED EXCITATIONS IN THE FRACTIONAL QUANTUM HALL-EFFECT

被引：28

作者：

CHAKRABORTY, T ^{[1
]}

PIETILAINEN, P ^{[1
]}

机构：

[1] UNIV OULU,DEPT THEORET PHYS,SF-90570 OULU 57,FINLAND

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.41.10862

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have investigated the fractional quantum Hall state at 3/5 and 4/9 fillings of the lowest Landau level. The quasiparticle-quasihole energy gaps for different spin polarizations indicate that at these filling factors, it might be possible to distinguish between the spin reversal of quasiparticles and quasiholes from activation-energy measurements. Novel features of the energy gap, such as its disappearance in a range of magnetic field, explain a similar observation in recent tilted-field experiments in the fractional-quantum-Hall- effect regime. © 1990 The American Physical Society.

引用

页码：10862 / 10865

页数：4

共 19 条

[1] MAGNETIC-FIELD DEPENDENCE OF ACTIVATION-ENERGIES IN THE FRACTIONAL QUANTUM HALL-EFFECT [J].

BOEBINGER, GS ;

CHANG, AM ;

STORMER, HL ;

TSUI, DC .

PHYSICAL REVIEW LETTERS, 1985, 55 (15) :1606-1609

[2] SPIN-REVERSED QUASI-PARTICLES IN THE FRACTIONAL QUANTUM HALL-EFFECT - MANY-BODY APPROACH [J].

CHAKRABORTY, T .

PHYSICAL REVIEW B, 1986, 34 (04) :2926-2928

[3] SPIN-REVERSED QUASI-PARTICLES IN THE FRACTIONAL QUANTUM HALL-EFFECT FINITE SYSTEM CALCULATIONS [J].

CHAKRABORTY, T ;

PIETILAINEN, P .

PHYSICA SCRIPTA, 1986, T14 :58-61

[4] ELEMENTARY EXCITATIONS IN THE FRACTIONAL QUANTUM HALL-EFFECT AND THE SPIN-REVERSED QUASI-PARTICLES [J].

CHAKRABORTY, T ;

PIETILAINEN, P ;

ZHANG, FC .

PHYSICAL REVIEW LETTERS, 1986, 57 (01) :130-133

[5] ROLE OF REVERSED SPINS IN THE CORRELATED GROUND-STATE FOR THE FRACTIONAL QUANTUM HALL-EFFECT [J].

CHAKRABORTY, T ;

ZHANG, FC .

PHYSICAL REVIEW B, 1984, 29 (12) :7032-7033

[6]

Chakraborty T., 1988, FRACTIONAL QUANTUM H

[7]

CHAKRABORTY T, IN PRESS SURF SCI

[8] SPIN CONFIGURATIONS AND QUASIPARTICLE FRACTIONAL CHARGE OF FRACTIONAL-QUANTUM-HALL-EFFECT GROUND-STATES IN THE N = O LANDAU-LEVEL [J].

CLARK, RG ;

HAYNES, SR ;

SUCKLING, AM ;

MALLETT, JR ;

WRIGHT, PA ;

HARRIS, JJ ;

FOXON, CT .

PHYSICAL REVIEW LETTERS, 1989, 62 (13) :1536-1539

[9] EVIDENCE FOR A PHASE-TRANSITION IN THE FRACTIONAL QUANTUM HALL-EFFECT [J].

EISENSTEIN, JP ;

STORMER, HL ;

PFEIFFER, L ;

WEST, KW .

PHYSICAL REVIEW LETTERS, 1989, 62 (13) :1540-1543

[10] CALCULATIONS OF THE FRACTIONAL QUANTIZED HALL-EFFECT [J].

HALPERIN, BI .

SURFACE SCIENCE, 1986, 170 (1-2) :115-124

← 1 2 →