Nanoscale torsional resonator for polarization and spectroscopy of nuclear spins

We propose a torsional resonator that couples to the transverse spin dipole of an attached sample. The absence of relative motion eliminates a source of friction that would otherwise hinder nanoscale implementation. Enhanced spontaneous emission induced by the resonator relaxes the longitudinal spin...

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Bibliographic Details
Published inPhysical review letters Vol. 105; no. 17; p. 177601
Main Authors Butler, Mark C, Norton, Valerie A, Weitekamp, Daniel P
Format Journal Article
LanguageEnglish
Published United States 22.10.2010
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Summary:We propose a torsional resonator that couples to the transverse spin dipole of an attached sample. The absence of relative motion eliminates a source of friction that would otherwise hinder nanoscale implementation. Enhanced spontaneous emission induced by the resonator relaxes the longitudinal spin dipole at a rate of ∼1  s⁻¹ in the low-temperature limit. With signal averaging, single-proton magnetic resonance spectroscopy appears feasible at ∼10  mK and a high magnetic field, while single-shot sensitivity is practical for samples with at least tens of protons in a volume of ∼5  nm³.
ISSN:1079-7114
DOI:10.1103/PhysRevLett.105.177601