W line shape in the resistively detected nuclear magnetic resonance

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DOIResolve DOI: http://doi.org/10.1088/0953-8984/27/27/275801
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TypeArticle
Journal titleJournal of Physics: Condensed Matter
ISSN0953-8984
1361-648X
Volume27
Issue27
Pages275801
Subjectquantum Hall effect; resistively detected nuclear magnetic resonance (RDNMR); electronic domains; electronic spin polarization
AbstractThe resistively detected nuclear magnetic resonance (RDNMR) performed on a two-dimensional electron gas is known to exhibit a peculiar 'dispersive' line shape at some filling factors, especially around $\nu =1$ . Here, we study in detail the inversion of the dispersive line shape as a function of the filling factor from $\nu =1$ to $2/3$ . The RDNMR spectra show a new characteristic W line shape in the longitudinal resistance, whereas dispersive lines detected in the Hall resistance remain unchanged. This W resonance, like the dispersive line, can be fitted correctly by a model of two independent response functions, which are the signatures of polarized and unpolarized electronic sub-systems.
Publication date
PublisherIOP Publishing
LanguageEnglish
AffiliationInformation and Communication Technologies; National Research Council Canada
Peer reviewedYes
NPARC number23001712
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Record identifier4275801d-e5b7-4f68-8a4a-72008d603639
Record created2017-03-21
Record modified2017-03-21
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