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Spin-current-induced magnetization reversal in magnetic nanowires with constrictions

dc.contributor.authorFlorez, S. H.
dc.contributor.authorKrafft, C.
dc.contributor.authorGomez, R. D.
dc.identifier.citationS. H. Florez, C. Krafft, and R. D. Gomez*, “Spin Current Induced Magnetization Reversal in Magnetic Nanowires with Constrictions”, Journal of Applied Physics 97, 2005, 10C705.en
dc.description.abstractWe have performed experiments on current-induced domain-wall motion sCIDWMd in the case of the domain walls sDWd trapped within the nanoscale constrictions in patterned NiFe structures. Direct observation of current-induced magnetization reversal was achieved and critical current densities jc were measured in the presence of easy-axis magnetic fields. The direction of CIDWM was found to be along the direction of the electron motion in absence of an applied magnetic field and in the direction of the field when in the presence of even relatively weak fields. Data for the field dependence of jc for both uniform and fast rising pulses suggest that the current, regardless of polarity, assists in the depinning of the DW. Only for the dc case does the data strongly reveal the influence of the electron pressure in promoting or hindering DW motion.en
dc.format.extent204347 bytes
dc.publisherAmerican Institute of Physicsen
dc.subjectcurrent-induced domain-wall motion (CIDWM)en
dc.subjectdomain walls (DW)en
dc.subjectNiFe structuresen
dc.titleSpin-current-induced magnetization reversal in magnetic nanowires with constrictionsen
dc.relation.isAvailableAtA. James Clark School of Engineeringen_us
dc.relation.isAvailableAtElectrical & Computer Engineeringen_us
dc.relation.isAvailableAtDigital Repository at the University of Marylanden_us
dc.relation.isAvailableAtUniversity of Maryland (College Park, MD)en_us
dc.rights.licenseCopyright 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article may be found at

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