Static Critical Behavior of the Spin-Freezing Transition in the Geometrically Frustrated Pyrochlore Antiferromagnet Y2Mo2O7

Preprint

15 November 1996

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9611121

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 nonlinear magnetization measurements on Y2Mo2O7 that provide strong evidence that there is an underlying thermodynamic phase transition at Tf, which is characterized by critical exponents \gamma \approx 2.8 and \beta \approx 0.8. These values are typical of those found in random spin glasses, despite the fact that the level of random disorder in Y2Mo2O7 is immeasurably small.

Keywords

PYROCHLORE ANTIFERROMAGNETS
SPIN FREEZING TRANSITION
FRUSTRATED PYROCHLORE
OBSERVED NONLINEAR
PHASE TRANSITION
STATIC CRITICAL
Y2MO2O7

All Related Versions

Version 1, 1996-11-15, ArXiv
Published version: Physical Review Letters, 78 (5), 947.

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