Mesoscopic fluctuations of the ground-state spin of a small metal particle

被引：85

作者：

Brouwer, PW ^{[1
]}

Oreg, Y ^{[1
]}

Halperin, BI ^{[1
]}

机构：

[1] Harvard Univ, Lyman Lab Phys, Cambridge, MA 02138 USA

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 20期

关键词：

D O I：

10.1103/PhysRevB.60.R13977

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 for interaction strengths well below the Stoner criterion there is already an appreciable probability that the ground state has a spin other than zero or one half. Possible relations to experiments are discussed. [S0163-1829(99)50644-9].

引用

页码：13977 / 13980

页数：4

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