TY - JOUR AU - Popov, A AU - Anisimov, A. AU - Pappas, David C2 - Physical Review B (Condensed Matter and Materials Physics) DA - 2003-03-31 00:03:00 LA - en M1 - 67 PB - Physical Review B (Condensed Matter and Materials Physics) PY - 2003 TI - Mechanisms for the multistep spin reorientation of ultrathin Fe films on Gd ER -