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Paper
Axial and diagonal anisotropy crossover exponents for cubic systems
Abstract
Cubic n-component spin systems exhibit two distinct quadratic spin anisotropy crossover exponents, appropriate for axial and diagonal anisotropies. Results for n→∞ and to order ε{lunate}2, and for nm-component systems are given, and relevance to multi-critical points in various systems is discussed. © 1976.