DISCONTINUOUS SPIN-GLASS TRANSITION IN A RANDOM QUANTUM HEISENBERG MAGNET

被引：10

作者：

KOPEC, TK

机构：

[1] Department of Physics, Northeastern University, Boston

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.52.9590

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the Schwinger bosons SU(M) generalization of the spin-S (S = kappa M) quantum Heisenberg magnet with infinite-range, Gaussian-random exchange interactions. The spin-glass transition was accessed in the spherical limit M = infinity with fixed kappa. The model is solved exactly in the spin-glass phase within the Parisi ansatz with a single step of the replica symmetry breaking. The physical consequences of this quantum spin-glass transition scenario are discussed.

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页码：9590 / 9594

页数：5

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