Manipulating Spins by Cantilever Synchronized Frequency Modulation: A Variable Resolution Magnetic Resonance Force Microscope

We report a new spin manipulation protocol for periodically reversing the sample magnetization for Magnetic Resonance Force Microscopy. The protocol modulates the microwave excitation frequency synchronously with the position of the oscillating detection cantilever, thus allowing manipulation of the...

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Bibliographic Details
Published inarXiv.org
Main Authors Fong, K C, Banerjee, P, Obukhov, Yu, Pelekhov, D V, Hammel, P C
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 02.05.2008
Subjects
Frequency modulation
Magnetic resonance
Magnetism
Magnetization
Physics - Mesoscale and Nanoscale Physics
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Summary:We report a new spin manipulation protocol for periodically reversing the sample magnetization for Magnetic Resonance Force Microscopy. The protocol modulates the microwave excitation frequency synchronously with the position of the oscillating detection cantilever, thus allowing manipulation of the spin magnetization independent of both magnetic field gradient strength and cantilever response time. This allows continuous variation of the detected sample volume and is effective regardless of spin relaxation rate. This enhanced flexibility improves the utility of MRFM as a generally applicable imaging and characterization tool.
ISSN:2331-8422
DOI:10.48550/arxiv.0805.0266