Electrically Controlled Nuclear Spin Polarization and Relaxation by Quantum-Hall States

K. Hashimoto, K. Muraki, T. Saku, Y. Hirayama

研究成果: Article

7 被引用数 (Scopus)

抄録

We study interactions between electrons and nuclear spins by using the resistance ([Formula presented]) peak which develops near the Landau-level filling factor [Formula presented] as a probe. Temporarily tuning [Formula presented] to a different value, [Formula presented], with a gate demonstrates that the [Formula presented] peak regenerates even after complete depletion ([Formula presented]), while it rapidly relaxes on either side of [Formula presented]. This indicates that the [Formula presented] domain morphology is memorized by the nuclear spins which can be rapidly depolarized by Skyrmions. An additional enhancement in the nuclear spin relaxation around [Formula presented] and [Formula presented] suggests a Fermi sea of partially polarized composite fermions.

本文言語English
ページ数1
ジャーナルPhysical Review Letters
88
17
DOI
出版ステータスPublished - 2002 1 1
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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