В четверг 13 июня в 15:00 состоится научный семинар центра, на котором выступит д.ф.-м.н. Федотов Алексей Юрьевич, Удмуртский федеральный исследовательский центр - УрО РАН.
Тема: Numerical study of magnetic properties for Co-Fe-Nb nanofilms as promising materials for magnetoresistive memory
Аннотация: The paper presents an overview of the magnetic resistive memory varieties, discusses their design features, weaknesses and benefits, and provides a comparative characteristic. A review of a combined mathematical model that jointly describes the change of spins and coordinates of atoms (spin-lattice dynamics) is given. In general, the model can use any form of interatomic force potential and describes various contributions to the magnetic Hamiltonian. In this work, a simplified form of the magnetic Hamiltonian, taking into account only the Zeeman and exchange interactions, was considered to investigate magnetic interactions. The described model is implemented in the SPIN software package in the freely distributed LAMMPS complex. In this work, computational experiments were performed using the MEAM potential. The computational experiments represent three separate series of calculations. In the first one, the formation and structuring processes in a multilayer cobalt-iron-niobium nanocomposite were considered. It was shown that during the deposition of niobium, a rough nanofilm is formed, with height differences of several angstroms.