Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published April 1961 | Published
Journal Article Open

Experimental Procedure for the Determination of the Number of Paramagnetic Centers

Abstract

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 [1] 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.

Attached Files

Published - YARrsi61.pdf

Files

YARrsi61.pdf
Files (157.3 kB)
Name Size Download all
md5:ae237b737e95ee8c8d62a1f9cc1a3e85
157.3 kB Preview Download

Additional details

Created:
August 19, 2023
Modified:
October 17, 2023