Effect of the Interatomic Exchange Interaction on the Magnetic Phase Transitions in Spin Crossover Systems under High-Pressure


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Abstract

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 FexMg1 – xO.

About the authors

S. G. Ovchinnikov

Siberian Federal University; Kirensky Institute of Physics, Krasnoyarsk Scientific Center

Email: jso.krasn@mail.ru
Russian Federation, Krasnoyarsk, 660041; Krasnoyarsk, 660036

Yu. S. Orlov

Siberian Federal University; Kirensky Institute of Physics, Krasnoyarsk Scientific Center

Author for correspondence.
Email: jso.krasn@mail.ru
Russian Federation, Krasnoyarsk, 660041; Krasnoyarsk, 660036

S. V. Nikolaev

Siberian Federal University; Kirensky Institute of Physics, Krasnoyarsk Scientific Center

Email: jso.krasn@mail.ru
Russian Federation, Krasnoyarsk, 660041; Krasnoyarsk, 660036

A. I. Nesterov

Department of Physics

Email: jso.krasn@mail.ru
Mexico, Guadalajara, 44100

T. M. Ovchinnikova

Sukachev Institute of Forest, Krasnoyarsk Scientific Center

Email: jso.krasn@mail.ru
Russian Federation, Krasnoyarsk, 660036

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