Abstract
Recent studies of x-ray magnetic circular dichroism (XMCD) at V/Co interfaces have determined the magnetic moments on V and Co atoms. The purpose of the present communication is to explain the strong induced polarization on V atoms in thin V layers deposited on Cu substrate and covered by Co atoms. Ab initio calculations performed with abrupt interfaces between Co and V do not lead to agreement with the XMCD results. Interfacial alloying between Co and V atoms increases greatly the moments on the interfacial V atoms and thus improves somewhat the agreement with the XMCD results.
Highlights
Recent studies of x-ray magnetic circular dichroism (XMCD) at V/Co interfaces have determined the magnetic moments on V and Co atoms
Recent ab initio calculations by Carrillo-Cazares et al [1] and Hong [2,3] have obtained, for V submonolayer coverage on Co(001), a sizable magnetic moment on V atoms with an antiferromagnetic coupling between the V and Co atoms. Those ab initio calculations are in good semi-quantitative agreement with XMCD results of Huttel et al [4]
As can be seen from the inspection of CarrilloCazares et al [1,5] and Hong [2], for ordered V0.5Co0.5 alloy one monolayer thick on Co(001), similar results concerning the magnetic moments on V and Co atoms were obtained
Summary
Recent studies of x-ray magnetic circular dichroism (XMCD) at V/Co interfaces have determined the magnetic moments on V and Co atoms. Carrillo-Cazares et al [5] as well as Hong [2] performed calculations for a V0.5Co0.5 ordered alloy on Co(001) as well as one to three complete V monolayers on Co(001).
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