NMR evidence for spin canting in a bilayer ν=2 quantum hall system

N. Kumada, K. Muraki, Y. Hirayama

研究成果: Article査読

39 被引用数 (Scopus)

抄録

We investigate the electron spin states in the bilayer quantum Hall system at total Landau level filling factor ν=2 exploiting current-pumped and resistively detected NMR. The measured Knight shift, KS, of As75 nuclei reveals continuous variation of the out-of-plane electronic spin polarization between nearly full and zero as a function of density imbalance. Nuclear spin relaxation measurements indicate a concurrent development of an in-plane spin component. These results provide direct information on the spin configuration in this system and comprise strong evidence for the spin canting suggested by previous experiments.

本文言語English
論文番号076805
ジャーナルPhysical review letters
99
7
DOI
出版ステータスPublished - 2007 8 17

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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