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NMR Evidence for Spin Canting in a Bilayer nu = 2 Quantum Hall System
- Source :
- Phys. Rev. Lett. 99, 076805 (2007).
- Publication Year :
- 2007
-
Abstract
- We investigate the electron spin states in the bilayer quantum Hall system at total Landau level filling factor nu =2 exploiting current-pumped and resistively detected NMR. The measured Knight shift, KS, of 75As 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.<br />Comment: Accepted for Phys. Rev. Lett
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 99, 076805 (2007).
- Publication Type :
- Report
- Accession number :
- edsarx.0707.1359
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.99.076805