Modelling current-induced magnetization switching in Heusler alloy Co2FeAl-based spin-valve nanopillar

作者：Huang, H. B.^*; Ma, X. Q.; Liu, Z. H.; Zhao, C. P.; Chen, L. Q.

来源：Journal of Applied Physics, 2014, 115(13): 133905.

DOI：10.1063/1.4870291

• POLARIZED CURRENT
• CO/CU/CO PILLARS
• REVERSAL
• DRIVEN
• MULTILAYER
• EXCITATION

We investigated the current-induced magnetization switching in a Heusler alloy Co2FeAl-based spin-valve nanopillar by using micromagnetic simulations. We demonstrated that the elimination of the intermediate state is originally resulted from the decease of effective magnetic anisotropy constant. The magnetization switching can be achieved at a small current density of 1.0 x 10(4) A/cm(2) by increasing the demagnetization factors of x and y axes. Based on our simulation, we found magnetic anisotropy and demagnetization energies have different contributions to the magnetization switching.

• 出版日期2014-4-7
• 单位北京科技大学