SCATTERING MODELS OF CONDUCTION AROUND AN ANTIDOT IN A MAGNETIC-FIELD

被引：29

作者：

KIRCZENOW, G ^{[1
]}

机构：

[1] NATL RES COUNCIL CANADA,INST MICROSTRUCT SCI,OTTAWA K1A 0R6,ONTARIO,CANADA

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.50.1649

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetotransport through a pair of parallel ballistic conducting channels separated by an antidot is studied theoretically using models with magnetic edge states linked by unitary scattering matrices. Analytic solutions of the models are presented. A model is identified that exhibits abrupt phase shifts of magnetoconductance oscillations and beatlike conductance features similar to those that have recently been observed experimentally. The effect of temperature on the beatlike structures is discussed. Another possible explanation for the experimentally observed phase shifts is also mentioned.

引用

页码：1649 / 1655

页数：7

共 53 条

[1] SIGNIFICANCE OF ELECTROMAGNETIC POTENTIALS IN THE QUANTUM THEORY [J].

AHARONOV, Y ;

BOHM, D .

PHYSICAL REVIEW, 1959, 115 (03) :485-491

[2] COMPUTER-SIMULATIONS AND EDGE-STATE ANALYSIS OF THE HALL-EFFECT IN 2-DIMENSIONAL QUANTUM-DOT ARRAYS CONNECTED TO PHASE-RANDOMIZING RESERVOIRS [J].

AKIS, R ;

BARNES, C ;

JOHNSON, BL ;

KIRCZENOW, G .

PHYSICAL REVIEW B, 1993, 47 (24) :16382-16390

[3] BALLISTIC ELECTRONIC CONDUCTANCE OF 2 PARALLEL CHANNELS [J].

AVISHAI, Y ;

KAVEH, M ;

SHATZ, S ;

BAND, YB .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (38) :6907-6912

[4] PERSISTENT CURRENTS AND EDGE STATES IN A MAGNETIC-FIELD [J].

AVISHAI, Y ;

HATSUGAI, Y ;

KOHMOTO, M .

PHYSICAL REVIEW B, 1993, 47 (15) :9501-9512

[5] ELECTRONIC CONDUCTANCE OF AN ORIFICE IN A MAGNETIC-FIELD [J].

AVISHAI, Y ;

BAND, YB .

PHYSICAL REVIEW B, 1989, 40 (05) :3429-3432

[6]

BARNES C, 1993, PHYS REV LETT, V70, P115

[7]

BARNES CE, UNPUBLISHED

[8] NEGATIVE-RESISTANCE FLUCTUATIONS AT RESISTANCE MINIMA IN NARROW QUANTUM HALL CONDUCTORS [J].

BUTTIKER, M .

PHYSICAL REVIEW B, 1988, 38 (17) :12724-12727

[9] QUANTIZED TRANSMISSION OF A SADDLE-POINT CONSTRICTION [J].

BUTTIKER, M .

PHYSICAL REVIEW B, 1990, 41 (11) :7906-7909

[10] THE QUANTUM HALL-EFFECT IN OPEN CONDUCTORS [J].

BUTTIKER, M .

SEMICONDUCTORS AND SEMIMETALS, VOL 35: NANOSTRUCTURED SYSTEMS, 1992, 35 (0C) :191-277

← 1 2 3 4 5 6 →