Soft x-ray magnetic circular dichroism study of weakly ferromagnetic Zn1-xVxO thin film
Y. Ishida, J. I. Hwang, M. Kobayashi, Y. Takeda, K. Mamiya, J. Okamoto, S. -I. Fujimori, T. Okane, K. Terai, Y. Saitoh, Y. Muramatsu, A. Fujimori, A. Tanaka, H. Saeki, T. Kawai, H. Tabata
Abstract
We performed a soft x-ray magnetic circular dichroism (XMCD) study of a Zn1-xVxO thin film which showed small ferromagnetic moment. Field and temperature dependences of V 2p XMCD signals indicated the coexistence of Curie-Weiss paramagnetic, antiferromagnetic, and possibly ferromagnetic V ions, quantitatively consistent with the magnetization measurements. We attribute the paramagnetic signal to V ions substituting Zn sites which are somewhat elongated along the c-axis.
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