Magnetic resonance force microscopy
John A. Sidles(University of Washington), Joseph L. Garbini(University of Washington), K. J. Bruland(University of Washington), D. Rugar(University of Washington), O. Züǵer(University of Washington), S. Hoen(University of Washington), C. S. Yannoni(University of Washington)
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Abstract
Recent initial experiments in magnetic resonance force microscopy (MRFM) have detected the magnetic force exerted by electrons and nuclei in microscopic samples. The experiments generate a force signal by modulating the sample magnetization with standard magnetic resonance techniques. Sample sizes of a few nanograms generate readily detected force signals of order ${10}^{\ensuremath{-}14}$ to ${10}^{\ensuremath{-}16}$ Newtons. This article describes the present status of MRFM technology, with particular attention to the feasibility of detecting single-electron magnetic moments, and the possible applications of MRFM in biological imaging.
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