Analysis of Magnetization Change with Temperature in an Artificial Spin Ice Network by Three Dimensional Finite Element Modeling

Cumhuriyet Science Journal

article

İbrahim ÇİNAR¹ 

[1] KARAMANOĞLU MEHMETBEY ÜNİVERSİTESİ

关键词: Artificial spin ice;    Finite element modelling;    Magnetization change;   

DOI  :  10.17776/csj.1085357

学科分类：工程和技术（综合）

来源: Cumhuriyet University

【 摘 要 】

A three dimensional finite element model calculation was constructed, which includes different submodels, all as a function of temperature, using an iterative approach, to investigate permalloy artificial spin ice network with square geometry on thermal annealing while applying a voltage pulse. Magnetization is also included into the simulation with an equation defining the change of the magnetization with temperature. The maximum temperature is obtained around the sharp corners due to current crowding, and therefore, minimum magnetization values are observed around the same place, even zero magnetization depending on the applied pulse magnitude and width, because of Curie temperature of permalloy. The aim of this study is to understand the dynamic behavior of the artificial spin ice network according to programming pulse and the importance of the device design to minimize the effect of joule heating.

【 授权许可】

CC BY-NC-ND