Exchange-bias effects for MnO-MoO2+δ composite thin films

2020-01-31 23:22:45

magnetic films moments Japan MnO

责任者: Kida, T.;Koyano, M. 单位: Japan Adv. lnstitute of Sci. & Technol., Ishikawa, Japan 来源出处: Journal of the Physical Society of Japan(J. Phys. Soc. Jpn. (Japan)),2004/12/,73(12):3251-3 摘要: In a system of MnO-MoO2+δ composite thin films, an asymmetric magnetization curve is observed under a field-cooled (FC) condition. This shows that exchange-bias effects occurred because of a magnetic interaction between uncompensated magnetic moments at the surface of the MnO nanocrystallites and the antiferromagnetic (AF) moments of the core. This fact indicates that the AF domain wall is formed in the core of MnO nanocrystallites and that uncompensated magnetic moments at the surface are pinned by the AF domain wall 关键词: antiferromagnetic materials;crystallites;exchange interactions (electron);magnetic domains;magnetic moments;manganese compounds;molybdenum compounds;nanocomposites;thin films;exchange-bias effects;composite thin films;asymmetric magnetization curve;field-cooled condition;magnetic moments;nanocrystallites;antiferromagnetic moments;domain wall;MnO-MoO2+δ