Low relaxation rate in a low-Z alloy of iron

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dc.creatorScheck, C.
dc.creatorCheng, L.
dc.creatorBarsukov, I.
dc.creatorFrait, Z.
dc.creatorBailey, W. E.
dc.date2006-12-30
dc.date.accessioned2026-07-07T07:51:48Z
dc.date.available2026-07-07T07:51:48Z
dc.descriptionThe longest relaxation time and sharpest frequency content in ferromagnetic precession is determined by the intrinsic (Gilbert) relaxation rate \emph{$G$}. For many years, pure iron (Fe) has had the lowest known value of $G=\textrm{57 Mhz}$ for all pure ferromagnetic metals or binary alloys. We show that an epitaxial iron alloy with vanadium (V) possesses values of $G$ which are significantly reduced, to 35$\pm$5 Mhz at 27% V. The result can be understood as the role of spin-orbit coupling in generating relaxation, reduced through the atomic number $Z$.
dc.description14 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0701004
dc.identifierhttp://arxiv.org/abs/cond-mat/0701004
dc.identifierPhys. Rev. Lett. 98(11) 117601 (2007)
dc.identifierdoi:10.1103/PhysRevLett.98.117601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/125650
dc.subjectMaterials Science
dc.titleLow relaxation rate in a low-Z alloy of iron
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