dc.contributor.author | Lepadatu, S. | en_GB |
dc.contributor.author | Claydon, J.S. | en_GB |
dc.contributor.author | Kinane, C.J. | en_GB |
dc.contributor.author | Charlton, T.R. | en_GB |
dc.contributor.author | Langridge, Sean | en_GB |
dc.contributor.author | Potenza, A. | en_GB |
dc.contributor.author | Dhesi, Sarnjeet S. | en_GB |
dc.contributor.author | Keatley, Paul Steven | en_GB |
dc.contributor.author | Hicken, R.J. | en_GB |
dc.contributor.author | Hickey, B.J. | en_GB |
dc.contributor.author | Marrows, C.H. | en_GB |
dc.date.accessioned | 2013-01-10T15:55:07Z | en_GB |
dc.date.accessioned | 2013-03-20T13:09:30Z | |
dc.date.issued | 2010-01-29 | en_GB |
dc.description.abstract | Using pulsed-current measurements we investigate the domain-wall depinning via spin-transfer torque from pinning potentials in V-doped Ni80Fe20 wires. The domain-wall depinning boundary, showing the variation of threshold current density with longitudinal magnetic field is measured and reproduced using micromagnetic simulations. This method allows us to determine the spin-current polarization and nonadiabaticity parameter in these materials. By increasing the V concentration we show that the nonadiabaticity parameter is increased while the Gilbert damping is unaffected. On the other hand the spin-current polarization is decreased, resulting in larger threshold current densities. | en_GB |
dc.identifier.citation | Vol. 81 (2), article 020413(R) | en_GB |
dc.identifier.doi | 10.1103/PhysRevB.81.020413 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10036/4148 | en_GB |
dc.language.iso | en | en_GB |
dc.publisher | American Physical Society | en_GB |
dc.title | Domain-wall pinning, nonadiabatic spin-transfer torque, and spin-current polarization in permalloy wires doped with vanadium | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2013-01-10T15:55:07Z | en_GB |
dc.date.available | 2013-03-20T13:09:30Z | |
dc.identifier.issn | 1098-0121 | en_GB |
exeter.article-number | 020413R | en_GB |
dc.description | Copyright © 2010 The American Physical Society | en_GB |
dc.identifier.eissn | 1550-235X | en_GB |
dc.identifier.journal | Physical Review B - Condensed Matter and Materials Physics | en_GB |