• 文献标题:   Boosting proximity spin-orbit coupling in graphene/WSe2 heterostructures via hydrostatic pressure
  • 文献类型:   Article
  • 作  者:   FULOP B, MARFFY A, ZIHLMANN S, GMITRA M, TOVARI E, SZENTPETERI B, KEDVES M, WATANABE K, TANIGUCHI T, FABIAN J, SCHONENBERGER C, MAKK P, CSONKA S
  • 作者关键词:  
  • 出版物名称:   NPJ 2D MATERIALS APPLICATIONS
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  • 通讯作者地址:  
  • 被引频次:   21
  • DOI:   10.1038/s41699-021-00262-9
  • 出版年:   2021

▎ 摘  要

Van der Waals heterostructures composed of multiple few layer crystals allow the engineering of novel materials with predefined properties. As an example, coupling graphene weakly to materials with large spin-orbit coupling (SOC) allows to engineer a sizeable SOC in graphene via proximity effects. The strength of the proximity effect depends on the overlap of the atomic orbitals, therefore, changing the interlayer distance via hydrostatic pressure can be utilized to enhance the interlayer coupling between the layers. In this work, we report measurements on a graphene/WSe2 heterostructure exposed to increasing hydrostatic pressure. A clear transition from weak localization to weak antilocalization is visible as the pressure increases, demonstrating the increase of induced SOC in graphene.