The Effect of the Interface Width on the Exchange Interaction Constant between Ferro- and Antiferromagnets

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In the approximation of the average spin method, a system of equations for determining the average magnetic moments of atoms at the interface between a ferromagnet and an antiferromagnet is formulated. It is possible to simulate the dependences of interfacial exchange interaction constant Ain on the temperature, antiferromagnetic layer thickness, and interface width by solving the system of equations for an ultrathin Ni/NiO film. It is found that the interfacial exchange interaction constant in a film with a fixed interface width at low temperatures increases with an increase in the thickness of the antiferromagnetic layer. With an
increase in the interface width, the Ain value decreases by a factor of 1.3 and reaches its minimum level.

作者简介

L. Afremov

Department of Theoretical Physics and Intelligent Technologies, Institute of High Technologies and Advanced Materials, Far Eastern Federal University

Email: afremov.ll@dvfu.ru
Vladivostok, Primorskii Krai, 690922 Russia

L. Brykin

Laboratory for Simulation of Physical Processes, Institute of High Technologies and Advanced Materials,
Far Eastern Federal University

Email: afremov.ll@dvfu.ru
Vladivostok, Primorskii Krai, 690922 Russia

I. Il’yushin

Department of Theoretical Physics and Intelligent Technologies, Institute of High Technologies and Advanced Materials, Far Eastern Federal University

编辑信件的主要联系方式.
Email: afremov.ll@dvfu.ru
Vladivostok, Primorskii Krai, 690922 Russia

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