Diabolical points in magnetic molecules:: An exactly solvable model -: art. no. 064422

被引：31

作者：

Keçecioglu, E ^{[1
]}

Garg, A ^{[1
]}

机构：

[1] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.63.064422

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic molecule Fe-8 has a rich pattern of degeneracies in its magnetic spectrum as the static magnetic field applied to it is varied. The points of degeneracy, or diabolical points in the magnetic field space. are found exactly in the simplest model Hamiltonian for this molecule. They are shown to form a perfect centered rectangular lattice, and to be multiply diabolical in general. The multiplicity is found. An earlier semiclassical solution to this problem is thereby shown to be exact in leading order in 1/J where J is the spin.

引用

页数：4

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