k-asymmetric spin splitting at the interface between transition metal ferromagnets and heavy metals

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We systematically investigate the spin-orbit coupling-induced band splitting originating from inversion symmetry breaking at the interface between a Co monolayer and 4d (Tc, Ru, Rh, Pd, and Ag) or 5d (Re, Os, Ir, Pt, and Au) transition metals. In spite of the complex band structure of these systems, the odd-in-k spin splitting of the bands displays striking similarities with the much simpler Rashba spin-orbit coupling picture. We establish a clear connection between the overall strength of the odd-in-k spin splitting of the bands and the charge transfer between the d orbitals at the interface. Furthermore, we show that the spin splitting of the Fermi surface scales with the induced orbital moment, weighted by the spin-orbit coupling.
Publisher
AMER PHYSICAL SOC
Issue Date
2016-05
Language
English
Article Type
Article
Citation

PHYSICAL REVIEW B, v.93, no.17

ISSN
2469-9950
DOI
10.1103/PhysRevB.93.174421
URI
http://hdl.handle.net/10203/277449
Appears in Collection
PH-Journal Papers(저널논문)
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