Author/Authors :
Matsumoto، نويسنده , , Yoshihiro and Sakai، نويسنده , , Seiji and Entani، نويسنده , , Shiro and Takagi، نويسنده , , Yasumasa and Nakagawa، نويسنده , , Takeshi and Naramoto، نويسنده , , Hiroshi and Avramov، نويسنده , , Pavel and Yokoyama، نويسنده , , Toshihiko، نويسنده ,
Abstract :
X-ray magnetic circular dichroism (XMCD) spectroscopy was employed to investigate the electronic and magnetic structures of the bilayers of a C60–Co compound and Ni. A few–several nm thick C60–Co compound layers on the Ni(1 1 1) surface are found to show intense XMCD signals attributed to the localized Co d-spins only with the remanent magnetization of Ni layer. It is suggested that the region of the C60–Co compound within 3 nm from the interface is ferromagnetically coupled with Ni due to the indirect exchange interaction mediated by C60, probably relevant to the interlayer charge transfer.
