Resistively detected NMR in a two-dimensional electron system near ν=1: Clues to the origin of the dispersive lineshape

L. A. Tracy, J. P. Eisenstein, L. N. Pfeiffer, K. W. West

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

Resistively detected nuclear magnetic resonance (NMR) measurements on 2D electron systems near the ν=1 quantum Hall state are reported. In contrast to recent results of Gervais [Phys. Rev. Lett. 94, 196803 (2005)], a dispersive line shape is found at all radio-frequency powers studied and Korringa-type nuclear spin-lattice relaxation is observed. The shape of the unexplained dispersive line shape is found to invert when the temperature derivative of the longitudinal resistance changes sign. This suggests that both Zeeman and thermal effects are important to resistively detected NMR in this regime.

Original languageEnglish (US)
Article number121306
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume73
Issue number12
DOIs
StatePublished - 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Resistively detected NMR in a two-dimensional electron system near ν=1: Clues to the origin of the dispersive lineshape'. Together they form a unique fingerprint.

Cite this