Competition between fluctuations and disorder in frustrated magnets

Details Competition between fluctuations and disorder in frustrated magnets Competition between fluctuations and disorder in frustrated magnets

2002-05-02

arxiv.org/abs/cond-mat/0205048v2

Phys.Rev. B67 (2003) 052404

Physics

Condensed Matter

Statistical Mechanics

4 pages, 3 figures, published version

Scientific paper

10.1103/PhysRevB.67.052404

We investigate the effects of impurities on the nature of the phase transition in frustrated magnets, in d=4-epsilon dimensions. For sufficiently small values of the number of spin components, we find no physically relevant stable fixed point in the deep perturbative region (epsilon << 1), contrarily to what is to be expected on very general grounds. This signals the onset of important physical effects.

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