PMID: 9650791Jul 3, 1998Paper

Magnetic resonance force microscopy with a ferromagnetic tip mounted on the force detector

Solid State Nuclear Magnetic Resonance
Z Zhang, P C Hammel

Abstract

The Magnetic Resonance Force Microscope (MRFM) presents the opportunity for a magnetic resonance imaging probe with ultra-high, potentially atomic-scale, resolution. The successful application of this technique in detection of nuclear magnetic, electron-spin and ferromagnetic resonance (FMR) highlights its significant potential. We discuss the capabilities of the MRFM with particular emphasis on the detection of FMR using MRFM techniques. A crucial remaining challenge in the development of the magnetic resonance force microscope (MRFM) is to place the magnetic probe on the mechanical resonator. We address the problem of spurious detector response arising from interactions between the magnetic tip and various external applied fields. We show that miniature, magnetically-polarized Nd2Fe14B particles show promise as magnetic probe tips. Our experience indicates it will be important to minimize the total polarized moment of the magnetic tip and to ensure that the applied fields are as uniform as possible.

References

May 31, 1993·Physical Review Letters·J A Sidles, D Rugar
Jun 10, 1994·Science·D RugarR D Kendrick

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Citations

Feb 13, 2008·The Journal of Chemical Physics·Seppe KuehnJohn A Marohn

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