Refine your search�ソスF     
Report No.
 - 

Depth-resolved XMCD spectroscopy on single-layer graphene / Ni structure

Matsumoto, Yoshihiro; Entani, Shiro; Otomo, Manabu; Avramov, P.; Naramoto, Hiroshi*; Amemiya, Kenta*; Sakai, Seiji

The graphene-metal interaction is not only of fundamental interest but also of technological importance in view of spintronic applications. For the purpose of clarifying the electronic and magnetic states of graphene / ferromagnetic metal structure, depth-resolved X-ray absorption and X-ray magnetic circular dichroism (XMCD) spectroscopy are performed on the single- and bi-layer graphene /Ni(111) structures. An intense XMCD signal is observed in the C K-edge XMCD spectrum taken under the surface sensitive condition. This indicates that there exists the Ni-induced spin polarization in the $$pi$$-orbitals of graphene even at room temperature. The depth-resolved analysis of the Ni L-edge XMCD spectrum makes clear that the magnetization of Ni is decreased by 20-30% within a few atomic layers from the interface with single-layer graphen, possibly associated with the formation of C-Ni bonds.

Accesses

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.