Proximity-Induced Spin Polarization of Graphene in Contact with Half-Metallic Manganite

Seiji Sakai*, Sayani Majumdar, Zakhar I. Popov, Pavel V. Avramov, Shiro Entani, Yuri Hasegawa, Yoichi Yamada, Hannu Huhtinen, Hiroshi Naramoto, Pavel B. Sorokin, Yasushi Yamauchi

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

31 Citations (Scopus)


The role of proximity contact with magnetic oxides is of particular interest from the expectations of the induced spin polarization and weak interactions at the graphene/magnetic oxide interfaces, which would allow us to achieve efficient spin-polarized injection in graphene-based spintronic devices. A combined approach of topmost-surface-sensitive spectroscopy utilizing spin-polarized metastable He atoms and ab initio calculations provides us direct evidence for the magnetic proximity effect in the junctions of single-layer graphene and half-metallic manganite La0.7Sr0.3MnO3 (LSMO). It is successfully demonstrated that in the graphene/LSMO junctions a sizable spin polarization is induced at the Fermi level of graphene in parallel to the spin polarization direction of LSMO without giving rise to a significant modification in the π band structure.

Original languageEnglish
Pages (from-to)7532-7541
Number of pages10
JournalACS Nano
Issue number8
Publication statusPublished - 23 Aug 2016
MoE publication typeA1 Journal article-refereed


  • graphene
  • half-metals
  • interface
  • magnetic oxides
  • proximity effect
  • spin polarization
  • spintronics


Dive into the research topics of 'Proximity-Induced Spin Polarization of Graphene in Contact with Half-Metallic Manganite'. Together they form a unique fingerprint.

Cite this