Composite Fermions with a Warped Fermi Contour

M. A. Mueed, D. Kamburov, Yang Liu, Mansour Shayegan, L. N. Pfeiffer, K. W. West, K. W. Baldwin, R. Winkler

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Via measurements of commensurability features near the Landau filling factor v=1/2, we probe the shape of the Fermi contour for hole-flux composite fermions confined to a wide GaAs quantum well. The data reveal that the composite fermions are strongly influenced by the characteristics of the Landau level in which they are formed. In particular, their Fermi contour is warped when their Landau level originates from a hole band with significant warping.

Original languageEnglish (US)
Article number176805
JournalPhysical review letters
Volume114
Issue number17
DOIs
StatePublished - Apr 29 2015

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fermions
composite materials
quantum wells
probes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Mueed, M. A., Kamburov, D., Liu, Y., Shayegan, M., Pfeiffer, L. N., West, K. W., ... Winkler, R. (2015). Composite Fermions with a Warped Fermi Contour. Physical review letters, 114(17), [176805]. https://doi.org/10.1103/PhysRevLett.114.176805
Mueed, M. A. ; Kamburov, D. ; Liu, Yang ; Shayegan, Mansour ; Pfeiffer, L. N. ; West, K. W. ; Baldwin, K. W. ; Winkler, R. / Composite Fermions with a Warped Fermi Contour. In: Physical review letters. 2015 ; Vol. 114, No. 17.
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Mueed, MA, Kamburov, D, Liu, Y, Shayegan, M, Pfeiffer, LN, West, KW, Baldwin, KW & Winkler, R 2015, 'Composite Fermions with a Warped Fermi Contour', Physical review letters, vol. 114, no. 17, 176805. https://doi.org/10.1103/PhysRevLett.114.176805

Composite Fermions with a Warped Fermi Contour. / Mueed, M. A.; Kamburov, D.; Liu, Yang; Shayegan, Mansour; Pfeiffer, L. N.; West, K. W.; Baldwin, K. W.; Winkler, R.

In: Physical review letters, Vol. 114, No. 17, 176805, 29.04.2015.

Research output: Contribution to journalArticle

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Mueed MA, Kamburov D, Liu Y, Shayegan M, Pfeiffer LN, West KW et al. Composite Fermions with a Warped Fermi Contour. Physical review letters. 2015 Apr 29;114(17). 176805. https://doi.org/10.1103/PhysRevLett.114.176805