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Title: Dipolar field effects on the critical current for spin transfer switch of iron and permalloy nanoelements

We report a theoretical study of dipolar effects on the switching current density of soft ferromagnetic elliptical nanoelements. Relevant changes on the critical current value are found according to the orientation of the magnetization and the spin polarization with the major axis. We show that the critical current density may be reduced by as much as 92% for thin nanoelements magnetized along the minor axis direction, using in-plane spin polarization parallel to the magnetization.
Authors:
; ; ;  [1] ;  [2]
  1. Departamento de Física, Universidade Federal do Rio Grande do Norte, 59072-970 Natal, RN (Brazil)
  2. Departamento de Física, Universidade do Estado do Rio Grande do Norte, 59610-210 Mossoró, RN (Brazil)
Publication Date:
OSTI Identifier:
22273833
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; 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; ANTIFERROMAGNETIC MATERIALS; CRITICAL CURRENT; CURRENT DENSITY; FERROMAGNETISM; IRON; MAGNETIZATION; NANOSTRUCTURES; PERMALLOY; SPIN; SPIN ORIENTATION