Yariv, A. and Gordon, J. P. (1961) Experimental Procedure for the Determination of the Number of Paramagnetic Centers. Review of Scientific Instruments, 32 (4). pp. 462-463. ISSN 0034-6748 http://resolver.caltech.edu/CaltechAUTHORS:YARrsi61
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The determination of the number of paramagnetic centers in a given crystal is usually performed by comparing the resonance signal of the unknown centers with that of a calibrated standard. The two most often used standards are CuSO4·5H2O and DPPH. In the procedure described below the number of "spins" is obtained from a measurement of the reflection coefficient of a reflection cavity containing the spins; or more specifically from the change in the reflection coefficient between the "on resonance" and "off resonance" conditions. The measurements can be performed with the aid of the conventional equipment for the measurement of reflection coefficients. Great simplification is realized when a variable coupling cavity  is used.
|Additional Information:||© 1961 The American Institute of Physics. Received October 27, 1959; and in final form, January 18, 1961. The authors are indebted to J.M. Dziedzic for experimental assistance and to Dr. K. Nassau for growing the crystal used in the experiment.|
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|Deposited On:||21 Dec 2008 05:39|
|Last Modified:||26 Dec 2012 10:39|
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