Artificial antiphase boundary at the interface of ferrimagnetic spinel bilayers

作者：Ramos Ana V^*; Matzen Sylvia; Moussy Jean Baptiste; Ott Frederic; Viret Michel

来源：Physical Review B, 2009, 79(1): 014401.

DOI：10.1103/PhysRevB.79.014401

• antiphase boundaries
• cobalt compounds
• ferrimagnetic materials
• galvanomagnetic effects
• interface magnetism
• iron compounds
• magnetic structure
• magnetisation reversal
• superexchange interactions

CoFe(2)O(4)/Fe(3)O(4) bilayers represent an unusual exchange-coupled system whose properties are due to the nature of the oxide-oxide superexchange interactions at the interface. In this work, we analyze the magnetization reversal behavior and magnetic interface structure using a variety of advanced techniques. Low-temperature magnetization, magnetotransport, and polarized neutron reflectivity measurements suggest that the magnetization configuration at the bilayer interface mimics that of an antiphase boundary found in spinel ferrite thin films, thus explaining the unique nature of the magnetic behavior.

• 出版日期2009-1
• 单位中国地震局