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Title: Modelling current-induced magnetization switching in Heusler alloy Co{sub 2}FeAl-based spin-valve nanopillar

We investigated the current-induced magnetization switching in a Heusler alloy Co{sub 2}FeAl-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 × 10{sup 4} A/cm{sup 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.
Authors:
 [1] ;  [2] ; ; ;  [3] ;  [1]
  1. Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802 (United States)
  2. (China)
  3. Department of Physics, University of Science and Technology Beijing, Beijing 100083 (China)
Publication Date:
OSTI Identifier:
22273685
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 13; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALUMINIUM; ANISOTROPY; COMPUTERIZED SIMULATION; CURRENT DENSITY; DEMAGNETIZATION; ELECTRIC CURRENTS; HEUSLER ALLOYS; INTERMEDIATE STATE; INTERMETALLIC COMPOUNDS; IRON; MAGNETIZATION; SPIN; VALVES