Magnetic domain configurations in exchange-coupled NiO/Co bilayer films |
| |
| Institution: | 1. Department of Physics and Electronic Information, Huaibei Normal University, Huaibei, Anhui 235000, China;2. Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026, China;1. School of Physics and Astronomy, Schuster Building, The University of Manchester, Manchester M13 9PL, UK;2. School of Physics and Astronomy, University of Minnesota, 116 Church Street SE, Minneapolis, MN 55455, USA;1. Institut Jean Lamour, UMR 7198 CNRS-Université Lorraine, Parc de Saurupt, 54011 Nancy, France;2. CRISMAT, UMR 6508 CNRS/ENSICAEN, LUSAC, Université de Caen Basse-Normandie, 6 Bd Maréchal Juin, 14050 CAEN Cedex 04, France;3. Institut Laue-Langevin (ILL), 6 rue J. Horowitz, BP 156-38042 Grenoble, Cedex 09, France |
| |
| Abstract: | The magnetic domain configurations of exchange-coupled NiO/Co bilayers were investigated by magnetic force microscopy. These bilayers exhibit a well-defined uniaxial anisotropy resulting from the deposition at oblique incidence of the NiO layer. Two types of magnetic contrast are identified: (i) bipolar contrast due to 180° Néel walls in the parts of the walls which are parallel to the easy axis of magnetization, and (ii) monopolar contrast in the parts of the walls separating domains with meeting head-on magnetizations. These latter domain walls have a zigzag shape which represents a compromise between a decrease in the local density of magnetostatic energy and an increase in the wall length. The effect of the Co thickness of the shape on the domains is also discussed. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
