Title :
The temperature dependence of magnetostatic interactions in nanowire systems
Author :
Diaconu, A. ; Dumitru, Ioan ; Stancu, Alexandru ; Spinu, Leonard
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Stefan cel Mare Univ., Suceava, Romania
Abstract :
The paper analyzes the temperature influence on the magnetic behavior of a 2D square network of ferromagnetic Ni nanowires. Numerical micromagnetic simulations were performed in order to better understand the magnetic behavior of magnetic nanowire systems, the magnetic interaction between wires and the role of the temperature in defining the magnetic state of individual wires and of the wire system. The nanowire system was studied using an Ising type model; the hysteresis loops and the temperature dependence of the coercive field and magnetic remanence were obtained. In order to increase model´s accuracy micromagnetic simulations were carried out in order to improve upon the expression for the energy barrier in the Monte-Carlo-Metropolis.
Keywords :
Ising model; Monte Carlo methods; coercive force; computational electromagnetics; ferromagnetic materials; magnetic hysteresis; magnetostatics; micromagnetics; nanowires; 2D square network; Ising type model; Monte-Carlo-Metropolis; coercive field; energy barrier; ferromagnetic nanowires; hysteresis loops; magnetic behavior; magnetic interaction; magnetic nanowire systems; magnetic remanence; magnetic state; magnetostatic interactions; model accuracy; numerical micromagnetic simulations; temperature dependence; temperature influence; Magnetic hysteresis; Magnetostatics; Perpendicular magnetic anisotropy; Switches; Temperature dependence; Wires; Magnetic nanowire; Metropolis-Monte-Carlo algorithm; hysteresis loop; magnetostatic interaction; nanowire array;
Conference_Titel :
Development and Application Systems (DAS), 2014 International Conference on
Conference_Location :
Suceava
DOI :
10.1109/DAAS.2014.6842442
