Comparison of nuclear electric resonance and nuclear magnetic resonance in integer and fractional quantum Hall states

Toru Tomimatsu, Shota Shirai, Katsushi Hashimoto, Ken Sato, Yoshiro Hirayama

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Electric-field-induced nuclear resonance (NER: nuclear electric resonance) involving quantum Hall states (QHSs) was studied at various filling factors by exploiting changes in nuclear spins polarized at quantum Hall breakdown. Distinct from the magnetic dipole interaction in nuclear magnetic resonance, the interaction of the electric-field gradient with the electric quadrupole moment plays the dominant role in the NER mechanism. The magnitude of the NER signal strongly depends on whether electronic states are localized or extended. This indicates that NER is sensitive to the screening capability of the electric field associated with QHSs.

Original languageEnglish
Article number087156
JournalAIP Advances
Volume5
Issue number8
DOIs
Publication statusPublished - 2015 Aug 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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