Critical behavior at phase transitions of the spin-reorientation type in rare-earth magnets
I. M. VitebskiĭPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR, DonetskН. М. ЛавріненкоPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR, Donetsk
ABI
Abstract
The role of fluctuation effects accompanying phase transitions of the spin-reorientation type in rare-earth magnets (orthoferrites, ferrites-garnets, etc.) is analyzed. It is shown that the most significant and observable fluctuation correction to the thermodynamic quantities in the critical region is nonsingular and is determined by magnetic interactions in the rare-earth subsystem.
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