Detection of composite fermions by magnetic focusing

V. J. Goldman; B. Su; J. K. Jain

doi:10.1103/PhysRevLett.72.2065

Detection of composite fermions by magnetic focusing

V. J. Goldman
, B. Su
, J. K. Jain

Physics

Research output: Contribution to journal › Article › peer-review

277 Scopus citations

Abstract

We report on transverse magnetic focusing experiments in two-dimensional electron systems in the vicinity of Landau level filling factor ν=1/2. We observe quasiperiodic magnetic focusing peaks for ν<1/2 and no periodic structure for ν>1/2 in several double-constriction GaAs heterojunction samples. The quasiperiod and the direction of focusing in all of these samples are in good quantitative agreement with that expected from semiclassical transport by composite fermions of charge -e.

Original language	English (US)
Pages (from-to)	2065-2068
Number of pages	4
Journal	Physical review letters
Volume	72
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.72.2065
State	Published - 1994

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.72.2065

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title = "Detection of composite fermions by magnetic focusing",

abstract = "We report on transverse magnetic focusing experiments in two-dimensional electron systems in the vicinity of Landau level filling factor ν=1/2. We observe quasiperiodic magnetic focusing peaks for ν<1/2 and no periodic structure for ν>1/2 in several double-constriction GaAs heterojunction samples. The quasiperiod and the direction of focusing in all of these samples are in good quantitative agreement with that expected from semiclassical transport by composite fermions of charge -e.",

author = "Goldman, \{V. J.\} and B. Su and Jain, \{J. K.\}",

year = "1994",

doi = "10.1103/PhysRevLett.72.2065",

language = "English (US)",

volume = "72",

pages = "2065--2068",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "13",

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T1 - Detection of composite fermions by magnetic focusing

AU - Goldman, V. J.

AU - Su, B.

AU - Jain, J. K.

PY - 1994

Y1 - 1994

N2 - We report on transverse magnetic focusing experiments in two-dimensional electron systems in the vicinity of Landau level filling factor ν=1/2. We observe quasiperiodic magnetic focusing peaks for ν<1/2 and no periodic structure for ν>1/2 in several double-constriction GaAs heterojunction samples. The quasiperiod and the direction of focusing in all of these samples are in good quantitative agreement with that expected from semiclassical transport by composite fermions of charge -e.

AB - We report on transverse magnetic focusing experiments in two-dimensional electron systems in the vicinity of Landau level filling factor ν=1/2. We observe quasiperiodic magnetic focusing peaks for ν<1/2 and no periodic structure for ν>1/2 in several double-constriction GaAs heterojunction samples. The quasiperiod and the direction of focusing in all of these samples are in good quantitative agreement with that expected from semiclassical transport by composite fermions of charge -e.

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UR - https://www.scopus.com/pages/publications/0001017424#tab=citedBy

U2 - 10.1103/PhysRevLett.72.2065

DO - 10.1103/PhysRevLett.72.2065

M3 - Article

C2 - 10055779

AN - SCOPUS:0001017424

SN - 0031-9007

VL - 72

SP - 2065

EP - 2068

JO - Physical review letters

JF - Physical review letters

IS - 13

ER -

Detection of composite fermions by magnetic focusing

Abstract

All Science Journal Classification (ASJC) codes

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