Existence of a magnetically ordered hole gas at the La0.7Sr0.3MnO3/SrRuO3 interface Michael Ziese, Francis Bern, Annette Setzer, Eckhard Pippel, Dietrich Hesse and Ionela Vrejoiu Eur. Phys. J. B, 86 2 (2013) 42 Published online: 06 February 2013 DOI: 10.1140/epjb/e2012-30646-4