Micromagnetic simulation of spin-transfer switching in a full-Heusler Co2FeAl0.5Si0.5 alloy spin-valve nanopillar

H. B. Huang, X. Q. Ma, Z. H. Liu, F. Y. Meng, Z. H. Xiao, P. P. Wu, S. Q. Shi, L. Q. Chen

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We investigated the spin-transfer switching in a full-Heusler Co 2FeAl0.5Si0.5 alloy spin-valve nanopillar through micromagnetic simulation. A two-step switching hysteresis loop due to the fourfold in-plane magnetocrystalline anisotropy of Co2FeAl 0.5Si0.5 layers was obtained. The simulation explains the experimental result of the resistance versus current hysteresis loop and yields good agreement with the measured critical current. Furthermore, the magnetization trajectory and magnetization distribution were shown and analyzed to elucidate the different characters of two-step switching.

Original languageEnglish (US)
Article number033913
JournalJournal of Applied Physics
Issue number3
StatePublished - Aug 1 2011


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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