Magnetocapacitance and Magnetoresistance Near Room Temperature in a Ferromagnetic Semiconductor: La 2 NiMnO 6

作者：N. Rogado, J. Li, A.W. Sleight, M. A. Subramanian · 发表于：Advanced Materials · 年份：2005 · DOI：10.1002/adma.200500737 · 被引用次数：761 · 研究领域：Magnetic and transport properties of perovskites and related materials、Advanced Condensed Matter Physics、Multiferroics and related materials

Neutron diffraction studies confirm that La2NiMnO6 is ferromagnetic with moments on Ni and Mn indicating NiII and MnIV (small and large spheres, respectively, in Figure). Electrical resistivity measurements show semiconducting behavior with a room temperature conductivity of ∼102 Ω cm and very high resistivity at low temperature. On application of a magnetic field, significant changes in electrical resistivity and dielectric constant occur at temperatures as high as 280 K.