グラフェン/Sn/SiC(0001)のスピン偏極バンドと対称性

Translated title of the contribution: Spin-polarized surface states and symmetry of graphene/Sn/SiC(0001)

矢治 光一郎, Anton Visikovskiy, 飯盛 拓嗣, 林 真吾, 梶原 隆司, 黒田 健太, 田中 悟, 小森 文夫, 辛 埴

Research output: Contribution to journalArticle

Abstract

<p>We have investigated the spin-polarized band structure of a Sn monoatomic layer formed by intercalation into graphene/SiC interface by spin- and angle-resolved photoemission spectroscopy. We find coexistence of Zeeman- and Rashba-type spin-polarized bands at the K point. This result departs from understanding with taking the lattice symmetry only into account, where the Zeeman type is consistent with the lattice symmetry while the Rashba type is inconsistent. On the other hand, the symmetry of the charge density distribution clearly explains the nature of the spin-polarized bands. We conclude that the symmetry of the charge density distribution is a key to understand the nature of the spin splitting.</p>
Translated title of the contributionSpin-polarized surface states and symmetry of graphene/Sn/SiC(0001)
Original languageJapanese
Pages (from-to)1Hp05
Journal日本表面真空学会学術講演会要旨集
Volume2019
Issue number0
DOIs
Publication statusPublished - 2019

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