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

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

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

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 languageEnglish (US)
Pages (from-to)2468041-2468044
Number of pages4
JournalPhysical review letters
Volume89
Issue number24
StatePublished - Dec 9 2002

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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