Soft x-ray magnetic circular dichroism study of weakly ferromagnetic Zn$_{1-x}$V$_x$O thin film

Ishida, Y.; Hwang, J. I.; Kobayashi, M.; Takeda, Y.; Mamiya, K.; Okamoto, J.; Fujimori, S. -I.; Okane, T.; Terai, K.; Saitoh, Y.; Muramatsu, Y.; Fujimori, A.; Tanaka, A.; Saeki, H.; Kawai, T.; Tabata, H.

Soft x-ray magnetic circular dichroism study of weakly ferromagnetic Zn$_{1-x}$V$_x$O thin film

Authors

Description

We performed a soft x-ray magnetic circular dichroism (XMCD) study of a Zn$_{1-x}$V$_x$O thin film which showed small ferromagnetic moment. Field and temperature dependences of V 2$p$ 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.