SPIN FREEZING IN THE GEOMETRICALLY FRUSTRATED PYROCHLORE ANTIFERROMAGNET TB2MO2O7

被引：176

作者：

GAULIN, BD

REIMERS, JN

MASON, TE

GREEDAN, JE

TUN, Z

机构：

[1] MCMASTER UNIV,INST MAT RES,DEPT CHEM,HAMILTON L8S 4M1,ONTARIO,CANADA

[2] AECL RES,CHALK RIVER LABS,CHALK RIVER K0J 1J0,ONTARIO,CANADA

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 69卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.69.3244

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetic metal ions in the cubic pyrochlore Tb2Mo2O7 form an infinite three-dimensional network of corner-sharing tetrahedra with a very high potential for frustration in the presence of antiferromagnetism. We have performed neutron scattering measurements which show short-range spatial correlations that develop continuously with decreasing temperature, while the characteristic time scale for the fluctuating moments decreases dramatically below T(f) is similar to 25 K. Therefore, this pure material, which possesses frustration that is purely geometrical in origin, displays a spin-glass state at low temperatures.

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页码：3244 / 3247

页数：4

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