期刊
PHYSICAL REVIEW LETTERS
卷 108, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.066810
关键词
-
资金
- Israeli Science Foundation
Resistively detected nuclear magnetic resonance is used to measure the Knight shift of the As-75 nuclei and determine the electron spin polarization of the fractional quantum Hall states of the second Landau level. We show that the 5/2 state is fully polarized within experimental error, thus confirming a fundamental assumption of the Moore-Read theory. We measure the electron heating under radio frequency excitation and show that we are able to detect NMR at electron temperatures down to 30 mK.
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