Observation of magnetically hard grain boundaries in double-perovskite Sr2FeMoO6
Y. Takahashi, V. K. Verma, G. Shibata, T. Harano, K. Ishigami, K. Yoshimatsu, T. Kadono, A. Fujimori, A. Tanaka, F.-H. Chang, H.-J. Lin, D. J. Huang, C. T. Chen, B. Pal and D. D. Sarma
