Electronic structures and half-metallicity in perovskite BaRu1−xFexO3: first-principles studies Tongwei Li, Zhenjie Feng, Chao Jing, Feng Hong, Shixun Cao and Jincang Zhang Eur. Phys. J. B, 86 10 (2013) 414 Published online: 02 October 2013 DOI: 10.1140/epjb/e2013-40005-8