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Влияние межатомного обменного взаимодействия на магнитные фазовые переходы в условиях спинового кроссовера при высоких давлениях
Author(s) -
С.Г. Овчинников,
Ю. С. ОРЛОВ,
С.В. Николаев,
Alexander I. Nesterov,
Т.М. Овчинникова
Publication year - 2018
Publication title -
физика твердого тела
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2018.06.45994.01m
Subject(s) - antiferromagnetism , spin crossover , phase diagram , condensed matter physics , spin (aerodynamics) , materials science , phase (matter) , thermodynamics , physics , quantum mechanics
The phase diagram of an antiferromagnet with the spin crossover from the high-spin to low-spin state with S = 0 with increasing external pressure has been calculated with regard to the pressure dependence of the exchange integral. The calculated results are compared with the experimental data on ferropericlase Fe_ x Mg_1 – x O.

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