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The effect of temperature on magnetostatic interactions in nanowires systems

V. GOIAN1, I. DUMITRU1, I. ASTEFANOAEI1, A. STANCU1,*

Affiliation

  1. “Alexandru Ioan Cuza” University, Faculty of Physics, 700506, Iasi, Romania

Abstract

This paper analyzes the influence of the temperature on the magnetostatic behavior of nanowire arrays. The computation was done considering two nanowire arrays types: with honeycomb lattice and with square lattice. The hysteresis loop of the nanowires system was calculated using an Ising type model, in which the wires magnetization vector has two preferred directions along nanowires axis. The interaction field between wires was analyzed using the FORC (First Order Reversal curves) diagrams. It was observed that magnetostatic interaction field modify the shape of hysteresis loop. The hysteresis loop parameters and the superparamagnetic effects are directly related with the geometric parameters of the nanowire system..

Keywords

Magnetic nanowires, Magnetostatic Interactions, Hysteresis loop, Metropolis-Monte-Carlo numerical procedure.

Submitted at: Feb. 11, 2009
Accepted at: Aug. 7, 2009

Citation

V. GOIAN, I. DUMITRU, I. ASTEFANOAEI, A. STANCU, The effect of temperature on magnetostatic interactions in nanowires systems, Journal of Optoelectronics and Advanced Materials Vol. 11, Iss. 8, pp. 1100-1105 (2009)