Dynamic Nuclear Polarization in a Quantum Hall Corbino Disk

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Author(s)

Abstract

Dynamic polarization of nuclear spins is studied in a Corbino disk under a breakdown regime of the quantum Hall effect (QHE). Since the edge channels are completely absent in the Corbino disk, we conclude that the electric current flowing in the bulk channel of a quantum Hall conductor is relevant to dynamic nuclear polarization (DNP). A pump and probe measurement demonstrates that DNP emerges near the critical voltage of the QHE breakdown. The agreement of the onset voltage of DNP with that of the QHE breakdown indicates that the underlying origin of DNP is closely related to that of the QHE breakdown.

Journal

  • Journal of the Physical Society of Japan

    Journal of the Physical Society of Japan 77(2), "23710-1"-"23710-3", 2008-02-15

    The Physical Society of Japan (JPS)

References:  12

Codes

  • NII Article ID (NAID)
    110006613878
  • NII NACSIS-CAT ID (NCID)
    AA00704814
  • Text Lang
    ENG
  • Article Type
    SHO
  • ISSN
    00319015
  • NDL Article ID
    9377392
  • NDL Source Classification
    ZM35(科学技術--物理学)
  • NDL Call No.
    Z53-A404
  • Data Source
    CJP  NDL  NII-ELS 
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