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

[11]

HALPERIN BI, 1983, HELV PHYS ACTA, V56, P75

[12] ANOMALOUS QUANTUM HALL-EFFECT - AN INCOMPRESSIBLE QUANTUM FLUID WITH FRACTIONALLY CHARGED EXCITATIONS [J].

LAUGHLIN, RB .

PHYSICAL REVIEW LETTERS, 1983, 50 (18) :1395-1398

[13] SPIN-DEPENDENT FRACTIONAL QHE STATES IN THE N = O LANDAU-LEVEL [J].

MAKSYM, PA .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (35) :6299-6306

[14] MONTE-CARLO EVALUATION OF TRIAL WAVE-FUNCTIONS FOR THE FRACTIONAL QUANTIZED HALL-EFFECT - DISK GEOMETRY [J].

MORF, R ;

HALPERIN, BI .

PHYSICAL REVIEW B, 1986, 33 (04) :2221-2246

[15] REVERSED-SPIN EXCITATIONS OF THE FRACTIONALLY QUANTIZED HALL-EFFECT FROM FINITE-SIZE CALCULATIONS [J].

REZAYI, EH .

PHYSICAL REVIEW B, 1987, 36 (10) :5454-5457

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

TSUI, DC ;

STORMER, HL ;

GOSSARD, AC .

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

[17] GROUND-STATE OF TWO-DIMENSIONAL ELECTRONS IN STRONG MAGNETIC-FIELDS AND 1/3 QUANTIZED HALL-EFFECT [J].

YOSHIOKA, D ;

HALPERIN, BI ;

LEE, PA .

PHYSICAL REVIEW LETTERS, 1983, 50 (16) :1219-1222

[18] SPIN-1 QUASI-PARTICLE AND SPIN POLARIZATION OF THE GROUND-STATE IN THE FRACTIONAL QUANTUM HALL-EFFECT [J].

ZHANG, FC ;

CHAKRABORTY, T .

PHYSICAL REVIEW B, 1986, 34 (10) :7076-7079

[19] GROUND-STATE OF TWO-DIMENSIONAL ELECTRONS AND THE REVERSED SPINS IN THE FRACTIONAL QUANTUM HALL-EFFECT [J].

ZHANG, FC ;

CHAKRABORTY, T .

PHYSICAL REVIEW B, 1984, 30 (12) :7320-7322

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