X-ray magnetic circular dichroism studies of Fe doped fullerene and highly oriented pyrolytic graphite

Kumar, Amit; Thakur, P.; Brookes, N. B.; Avasthi, D. K.
November 2009
Applied Physics Letters;11/2/2009, Vol. 95 Issue 18, p182511
Academic Journal
We report the x-ray magnetic circular dichroism (XMCD) studies on Fe doped fullerene thin film and bulk highly oriented pyrolytic graphite. The element-specific hysteresis curves were recorded by measuring the XMCD at the Fe L3 edge as a function of the applied field strength at different temperatures. These investigations suggest that Fe doped fullerene is ferromagnetic at room temperature, while Fe atoms are driven to a nonmagnetic/paramagnetic state with the interaction of graphite matrix.


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