Tailoring emergent spin phenomena in Dirac material heterostructures

Dmitrii Khokhriakov, Aron W. Cummings, Kenan Song, Marc Vila, Bogdan Karpiak, André Dankert, Stephan Roche, Saroj P. Dash

    Research output: Contribution to journalArticleResearch

    27 Citations (Scopus)

    Abstract

    Copyright © 2018 The Authors. Dirac materials such as graphene and topological insulators (TIs) are known to have unique electronic and spintronic properties. We combine graphene with TIs in van der Waals heterostructures to demonstrate the emergence of a strong proximity-induced spin-orbit coupling in graphene. By performing spin transport and precession measurements supported by ab initio simulations, we discover a strong tunability and suppression of the spin signal and spin lifetime due to the hybridization of graphene and TI electronic bands. The enhanced spin-orbit coupling strength is estimated to be nearly an order of magnitude higher than in pristine graphene. These findings in graphene-TI heterostructures could open interesting opportunities for exploring exotic physical phenomena and new device functionalities governed by topological proximity effects.
    Original languageEnglish
    Article numberaat9349
    JournalScience advances
    Volume4
    DOIs
    Publication statusPublished - 21 Sep 2018

    Fingerprint

    Dive into the research topics of 'Tailoring emergent spin phenomena in Dirac material heterostructures'. Together they form a unique fingerprint.

    Cite this