Irradiation induced ferromagnetism at room temperature in TiO2 thin films: X-ray magnetic circular dichroism characterizations

Title
Irradiation induced ferromagnetism at room temperature in TiO2 thin films: X-ray magnetic circular dichroism characterizations
Authors
H. ThakurP. KumarRavi KumarN. B. BrookesK. K. ShamaA, P. SinghY. Kumar가우탐채근화
Keywords
XMCD; ion Irradiation; Ferromagnatism
Issue Date
2011-05
Publisher
Applied physics letters
Citation
VOL 98, NO 19, 192512-1-192512-3
Abstract
We report on the room temperature ferromagnetism in the swift heavy ion (SHI) irradiated TiO2 thin films by x-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD) experiments at the O K and Ti L3,2 absorption edges. The XAS/XMCD measurements provide direct evidence of magnetic polarization of the O 2p and Ti 3d orbitals. The unquenched orbital magnetic moment within the O 2p shell is ferromagnetically coupled to the neighboring Ti moments, which illustrates the intense hybridization of the O 2p and Ti 3d orbitals induced by SHI irradiation.
URI
http://pubs.kist.re.kr/handle/201004/40796
ISSN
0003-6951
Appears in Collections:
KIST Publication > Article
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