ELEMENTARY EXCITATIONS IN A DILUTED ANTIFERROMAGNETIC KAGOME LATTICE

被引：109

作者：

RAMIREZ, AP

ESPINOSA, GP

COOPER, AS

机构：

[1] AT and T Bell Laboratories, Murray Hill, NJ 07974

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.45.2505

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thermodynamic studies as a function of dilution in the Heisenberg antiferromagnetic Kagome spin glass SrCr9pGa12-9pO19 are presented. The unusual T2 specific heat is found to be robust towards dilution, implying an origin intrinsic to the spin-glass state. The extremely small excitation stiffness and known correlation length indicate an unusual form of elementary excitation, with similarities to a hydrodynamic mode in a liquid.

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页码：2505 / 2508

页数：4

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