Mesoscopic fluctuations of the ground state spin of a small metal particle
arXiv:cond-mat/9907148 · doi:10.1103/PhysRevB.60.R13977
Abstract
We study the statistical distribution of the ground state spin for an ensemble of small metallic grains, using a random-matrix toy model. Using the Hartree Fock approximation, we find that already for interaction strengths well below the Stoner criterion there is an appreciable probability that the ground state has a finite, nonzero spin. Possible relations to experiments are discussed.
4 pages, RevTeX; 1 figure included with epsf