Show simple item record

dc.contributor.authorLaref, Slimane
dc.contributor.authorGhosh, Sumit
dc.contributor.authorTsymbal, Evgeny Y.
dc.contributor.authorManchon, Aurelien
dc.date.accessioned2020-06-28T10:54:04Z
dc.date.available2020-06-28T10:54:04Z
dc.date.issued2020-06-26
dc.date.submitted2019-03-07
dc.identifier.citationLaref, S., Ghosh, S., Tsymbal, E. Y., & Manchon, A. (2020). Induced spin textures at 3d transition metal–topological insulator interfaces. Physical Review B, 101(22). doi:10.1103/physrevb.101.220410
dc.identifier.issn2469-9950
dc.identifier.issn2469-9969
dc.identifier.doi10.1103/physrevb.101.220410
dc.identifier.urihttp://hdl.handle.net/10754/663893
dc.description.abstractWhile some of the most elegant applications of topological insulators, such as the quantum anomalous Hall effect, require the preservation of Dirac surface states in the presence of time-reversal symmetry breaking, other phenomena such as spin-charge conversion rather rely on the ability for these surface states to imprint their spin texture on adjacent magnetic layers. In this Rapid Communication, we investigate the spin-momentum locking of the surface states of a wide range of monolayer transition metals (3d-TM) deposited on top of Bi2Se3 topological insulators using first-principles calculations. We find an anticorrelation between the magnetic moment of the 3d-TM and the magnitude of the spin-momentum locking induced by the Dirac surface states. While the magnetic moment is large in the first half of the 3d series, following Hund’s rule, the spin-momentum locking is maximum in the second half of the series. We explain this trend as arising from a compromise between intra-atomic magnetic exchange and covalent bonding between the 3d-TM overlayer and the Dirac surface states. As a result, while Cr and Mn overlayers can be used successfully for the observation of the quantum anomalous Hall effect or the realization of axion insulators, Co and Ni are substantially more efficient for spin-charge conversion effects, e.g., spin-orbit torque and charge pumping.
dc.publisherAmerican Physical Society (APS)
dc.relation.urlhttps://link.aps.org/doi/10.1103/PhysRevB.101.220410
dc.rightsArchived with thanks to Physical Review B
dc.titleInduced spin textures at 3d transition metal–topological insulator interfaces
dc.typeArticle
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentMaterial Science and Engineering Program
dc.identifier.journalPhysical Review B
dc.eprint.versionPost-print
dc.contributor.institutionDepartment of Physics and Astronomy, University of Nebraska, Lincoln, Nebraska 68588, USA.
dc.contributor.institutionAix-Marseille Univ, CNRS, CINaM, Marseille, France.
dc.identifier.volume101
dc.identifier.issue22
kaust.personLaref, Slimane
kaust.personGhosh, Sumit
kaust.personManchon, Aurelien
dc.date.accepted2020-06-05


This item appears in the following Collection(s)

Show simple item record