Orbital polarization in and S. Yu. Ezhov, V. I. Anisimov, H. F. Pen, D. I. Khomskii and G. A. Sawatzky Europhys. Lett., 44 4 (1998) 491-497 Published online: 01 September 2002 DOI: 10.1209/epl/i1998-00499-9