NMR investigation of how free composite fermions are at ν = 1/2

N. Freytag; M. Horvatić; C. Berthier; M. Shayegan; L. P. Lévy

NMR investigation of how free composite fermions are at ν = 1/2

N. Freytag, M. Horvatić, C. Berthier, M. Shayegan, L. P. Lévy

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Abstract

The measurements of the electron spin polarization were performed on a two dimensional system by using NMR method. The imbalance of spin-up and spin-down composite fermions was mapped as a function of Zeeman effect. It was shown that the dependence of integer quantum Hall state around half-filling violated the particle-hole symmetry for partially polarized Fermi state.

Original language	English (US)
Article number	246804
Pages (from-to)	2468041-2468044
Number of pages	4
Journal	Physical review letters
Volume	89
Issue number	24
State	Published - Dec 9 2002

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

Cite this

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title = "NMR investigation of how free composite fermions are at ν = 1/2",

abstract = "The measurements of the electron spin polarization were performed on a two dimensional system by using NMR method. The imbalance of spin-up and spin-down composite fermions was mapped as a function of Zeeman effect. It was shown that the dependence of integer quantum Hall state around half-filling violated the particle-hole symmetry for partially polarized Fermi state.",

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T1 - NMR investigation of how free composite fermions are at ν = 1/2

AU - Freytag, N.

AU - Horvatić, M.

AU - Berthier, C.

AU - Shayegan, M.

AU - Lévy, L. P.

PY - 2002/12/9

Y1 - 2002/12/9

N2 - The measurements of the electron spin polarization were performed on a two dimensional system by using NMR method. The imbalance of spin-up and spin-down composite fermions was mapped as a function of Zeeman effect. It was shown that the dependence of integer quantum Hall state around half-filling violated the particle-hole symmetry for partially polarized Fermi state.

AB - The measurements of the electron spin polarization were performed on a two dimensional system by using NMR method. The imbalance of spin-up and spin-down composite fermions was mapped as a function of Zeeman effect. It was shown that the dependence of integer quantum Hall state around half-filling violated the particle-hole symmetry for partially polarized Fermi state.

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M3 - Article

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AN - SCOPUS:0037049486

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JO - Physical review letters

JF - Physical review letters

IS - 24

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ER -

NMR investigation of how free composite fermions are at ν = 1/2

Abstract

All Science Journal Classification (ASJC) codes

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