标题：Structure and magnetic properties of nanocrystalline CaB6films deposited by magnetron sputtering
作者：Zhao, Guoqing ;Zhang, Lin ;Hu, Lijie ;Yu, Hui ;Min, Guanghui ;Yu, Huashun
作者机构：[Zhao, Guoqing ;Zhang, Lin ;Hu, Lijie ;Yu, Hui ;Min, Guanghui ;Yu, Huashun ] Key Laboratory for Liquid-Solid Structural Evolution and Processing of Ma 更多
来源：Journal of Alloys and Compounds
摘要：The nanocrystalline CaB6films with different thickness were fabricated using DC-magnetron sputtering. The structure and the magnetic properties of the films were characterized by X-ray diffraction (XRD), scanning electron microscopy with energy dispersive spectrometer (SEM-EDS) and alternating gradient magnetometer (AGM). All films shows the lattice expansion and the (1 0 0) texture. With increasing of film thickness, the degree of lattice expansion decreased due to the intercalated argon atoms and the excess boron atoms. However, the grain size changed in the opposite tendency. The thinnest film (t = 500 nm) exhibited the greatest moment 3.76 × 10-8A m2, resulting in a magnetization of 11.36 × 103A/m. Defects aroused mainly by the lattice expansion and the grain boundaries were likely origin of the magnetism. © 2014 Elsevier B.V. All rights reserved.