Vol 5 - Landau Lifshitz Statistical Physics · Problem 52.P4

The Fermi and Bose Distributions

Physics — Landau & Lifshitz · magnetic-susceptibility-NO-gas

Problem

Determine the magnetic susceptibility of the gas NO. The electron ground term of the molecule is

{}^2\Pi

(i.e.

\Lambda = 1

S = \frac{1}{2}

), and the spacing

\Delta

between the doublet components is comparable to the temperature

T

(J. H. Van Vleck, 1928).