Critical velocity for the vortex core reversal in perpendicular bias magnetic field

Applied Physics Letters

Volumn 96, Issue 2, 2010, Pages

  Khvalkovskiy, A V ^a,b   Slavin, A N ^c   Grollier, J ^b   Zvezdin, K A ^a,d   Guslienko, K Yu ^e,f  

^a PROKHOROV GENERAL PHYSICS INSTITUTE   (Russian Federation)

^b UNITÉ MIXTE DE PHYSIQUE CNRS THALES   (France)

^c OAKLAND UNIVERSITY   (United States)

^d Istituto PM Srl   (Italy)

^e UNIVERSITY OF THE BASQUE COUNTRY UPV EHU   (Spain)

^f BASQUE FOUNDATION FOR SCIENCE   (Spain)

Author keywords

[No Author keywords available]

Indexed keywords

ANALYTICAL MODEL; BIAS FIELD; BIAS MAGNETIC FIELD; CRITICAL VELOCITIES; MAGNETIC NANODOTS; NUMERICAL RESULTS; VORTEX CORE REVERSAL; VORTEX CORES;

MAGNETIC FIELDS; NUMERICAL ANALYSIS; VORTEX FLOW;

VELOCITY;

EID: 74549164132     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.3291064     Document Type: Article

References (17)

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10. dc spin-polarized current can excite the vortex motion for whatever the vortex eigenfrequency is. Thus, it is more convenient for the calculations than the resonant excitation by the in-plane ac field like in Ref. We have checked, however, that the vortex critical velocity does not depend on the way the vortex motion is excited.
11. mT in terms of Ref. The Oersted field generated by the current is disregarded in the simulations.
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15. The vortex frequency is a nonlocal functional of the magnetization distribution outside the vortex core (Ref.).
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17. z (x,y), given that the magnetization at sufficient separation from the vortex core defines the ground level, and the maximum is in the core center.