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Sensitivity and spatial resolution for electron-spin-resonance detection by magnetic resonance force microscopy

Zhang, Z. and Roukes, M. L. and Hammel, P. C. (1996) Sensitivity and spatial resolution for electron-spin-resonance detection by magnetic resonance force microscopy. Journal of Applied Physics, 80 (12). pp. 6931-6938. ISSN 0021-8979. http://resolver.caltech.edu/CaltechAUTHORS:ZHAjap96

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Abstract

The signal intensity of electron spin resonance in magnetic resonance force microscopy (MRFM) experiments employing periodic saturation of the electron spin magnetization is determined by four parameters: the rf field H1, the modulation level of the bias field Hm, the spin relaxation time tau1, and the magnetic size R([partial-derivative]H/[partial-derivative]z) of the sample. Calculations of the MRFM spectra obtained from a 2,2-diphenyl-1-picrylhydrazyl particle have been performed for various conditions. The results are compared with experimental data and excellent agreement is found. The systematic variation of the signal intensity as a function of H1 and Hm provides a powerful tool to characterize the MRFM apparatus.


Item Type:Article
Additional Information:©1996 American Institute of Physics. (Received 19 October 1995; accepted 31 August 1996) The authors would like to thank Dr. P.E. Wigen for helpful discussions. This work was performed under the auspices of the U.S. Department of Energy.
Subject Keywords:ELECTRON SPIN RESONANCE; SPATIAL RESOLUTION; MAGNETIZATION; ORGANIC COMPOUNDS; MICROSCOPY; RELAXATION TIME; MAGNETIC FIELDS; LINE WIDTHS; MAGNETIC FORCE MICROSCOPY; ESR
Record Number:CaltechAUTHORS:ZHAjap96
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:ZHAjap96
Alternative URL:http://dx.doi.org/10.1063/1.363767
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4767
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:06 Sep 2006
Last Modified:26 Dec 2012 09:01

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