Change in the entropy during a first-order phase transition induced by a magnetic field in an isotropic non-Heisenberg ferromagnet

We describe a first-order phase transition in an isotropic non-Heisenberg ferromagnet induced by a magnetic field with a fourth-order spin exchange interaction at temperatures above the Curie point. The field behavior of the magnetization is analyzed and the temperature dependences of the critical f...

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Veröffentlicht in:	Low temperature physics (Woodbury, N.Y.) N.Y.), 2018-04, Vol.44 (4), p.322-327
Hauptverfasser:	Lavanov, G. Yu, Kalita, V. M., Loktev, V. M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplitudes Critical field (superconductivity) Curie temperature Entropy Ferromagnetic phases Ferromagnetism Free energy Magnetic fields Magnetism Magnetization Phase transitions Spin exchange
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