A Relation between the Electric and Diamagnetic Susceptibilities of Monatomic Gases
- 15 September 1932
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 41 (6), 813-817
- https://doi.org/10.1103/physrev.41.813
Abstract
A relation is derived by quantum-mechanical perturbation theory, using a center of gravity argument and the Kuhn-Reiche sum rule, between the polarizability and diamagnetic susceptibility of monatomic gases. On comparison with a similar paper by Kirkwood, who uses a variational method, a criterion is derived for the validity of a perturbed wave function of the form , where is the unperturbed wave function of the normal state and the perturbing potential energy of a uniform electric field. It is also pointed out that inclusion of an electronic interaction term neglected by Kirkwood removes a difficulty appearing in his paper.