https://doi.org/10.1051/epjconf/202022602018
Parallel Numerical Simulation of the Magnetic Moment Reversal within the φ0-Josephson Junction Spintronic Model
1
University of Plovdiv Paisii Hilendarski,
Tzar Asen 24,
4000
Plovdiv,
Bulgaria
2
Department of Physics, Sofia University,
J. Bourchier Blvd. 5,
1164
Sofia,
Bulgaria
3
Joint Institute of Nuclear Research,
141980
Dubna, Moscow Region,
Russia
4
Dubna State University,
141980
Dubna,
Russia
5
Umarov Physical Technical Institute, TAS,
734063
Dushanbe,
Tajikistan
★ e-mail: stefani.panaiotova93@gmail.com
★★ e-mail: bashashinmv@jinr.ru
Published online: 20 January 2020
The φ0-Josephson Dushanbe, Tajikistanjunction model with a coupling between the magnetic moment and the Josephson current in the “superconductor–ferromagnet–superconductor” system has been investigated. Numerical solution of the respective system of nonlinear differential equations is based on the two-stage Gauss–Legendre algorithm. For numerical simulation in a wide range of parameters which requires a significant computer time, a parallel MPI=C++ computer code has been developed. Results of numerical study of the magnetization effect depending on physical parameters, as well as results of methodological calculations demonstrating the efficiency of the parallel implementation, are presented. Calculations have been carried out at the Heterogeneous Platform “HybriLIT” and on the supercomputer “Govorun” of the Multifunctional Information and Computing Complex of the Laboratory of Information Technologies, JINR (Dubna).
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
