SPECIFIC-HEAT CRITICAL-BEHAVIOR OF THE ISING STACKED TRIANGULAR LATTICE ANTIFERROMAGNET CSCOBR3

被引：10

作者：

WANG, J ^{[1
]}

BELANGER, DP ^{[1
]}

GAULIN, BD ^{[1
]}

机构：

[1] MCMASTER UNIV,DEPT PHYS & ASTRON,HAMILTON L8S 4M1,ONTARIO,CANADA

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.49.12299

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have measured the specific-heat critical behavior of the Ising stacked triangular lattice antiferromagnet CsCoBr3, an excellent example of a fully frustrated three-dimensional second-order phase transition. For the transition near T = 28 K, alpha = -0.025 +/- 0.004 and A+/A- = 1.07 +/- 0.02 are consistent both with predicted d = 3 XY criticality and Monte Carlo simulations which indicate critical behavior close to, but distinct from XY universality. No latent heat is observed, consistent with a second-order transition. No specific-heat peak is observed at the transitions reported at lower temperatures.

引用

页码：12299 / 12302

页数：4

共 22 条

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