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NMR Force Microscopy of Ammonium Sulfate with 12 μm Resolution

Published online by Cambridge University Press:  29 October 2012

Isaac Manzanera  and
John T. Markert
Isaac Manzanera
Affiliation:
Department of Physics, The University of Texas at Austin, Austin, TX 78712, U.S.A.
John T. Markert
Affiliation:
Department of Physics, The University of Texas at Austin, Austin, TX 78712, U.S.A.
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Abstract

Position-dependent force-detected NMR measurements on a 25x15x7 μm3 single crystal of ammonium sulfate (NH4)2SO4 were performed at room temperature in a sample-on-oscillator configuration. Force signals were detected with 12 μm resolution in a one-dimensional scan. Measurements of NMR relaxation times T2* = 1.5 ± 0.3 μs, T2 = 44 ± 2 μs, and T1 = 5.6 ± 0.7 s were obtained in an 8-T magnetic field, revealing an unexpected frequency-dependent fluctuation spectrum at room temperature.

Keywords

nuclear magnetic resonance (NMR)magnetic propertiesnanoscale
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1468: Symposium VV – Nanomedicine for Molecular Imaging and Therapy , 2012 , mrss12-1468-vv05-21
Copyright
Copyright © Materials Research Society 2012

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References

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