Journal article
Static Critical Behavior of the Spin-Freezing Transition in the Geometrically Frustrated Pyrochlore Antiferromagnet Y2Mo2O7
Abstract
Some frustrated pyrochlore antiferromagnets, such as Y2Mo2O7, show a spin-freezing transition and magnetic irreversibilities below a temperature Tf similar to what is observed in randomly frustrated spin-glasses. We present results of nonlinear dc magnetization measurements on Y2Mo2O7 that provide strong evidence that there is an underlying thermodynamic phase transition at Tf, which is characterized by critical exponents γ≈2.8 and β≈0.8. These …
Authors
Gingras MJP; Stager CV; Raju NP; Gaulin BD; Greedan JE
Journal
Physical Review Letters, Vol. 78, No. 5, pp. 947–950
Publisher
American Physical Society (APS)
Publication Date
February 3, 1997
DOI
10.1103/physrevlett.78.947
ISSN
0031-9007