论文标题
新近薄膜中的非惯性磁现象
Nonconventional magnetic phenomena in neodymium thin film
论文作者
论文摘要
Neododymium是在各种应用中使用的许多磁合金中的显着活性成分。然而，由于缺乏有关其电气和磁性的信息，裸露的新近薄膜的应用受到限制。我们使用极化中子反射仪，磁倍率测量和密度功能理论的实验和理论技术报告了ND薄膜的协同研究。与散装ND不同，薄膜标本是一个非常差的电导体。同样，由于硅底物上种植的薄膜在零场中没有表现出任何磁性。但是，$ h $ = 1.2 t的中等平面场应用倾向于在$ t $ <$ 18 k $ <$ 18 k的低温下引起弱磁性，这与磁势不寻常的交叉行为相吻合。该研究提供了对ND薄膜的物理特征的重要见解，而ND薄膜的物理特征对于磁系统是非典型的。
Neodymium is a remarkable active component in numerous magnetic alloys that are used in various applications. However, the application of bare neodymium thin film is limited due to the lack of information about its electrical and magnetic properties. We report synergistic study of Nd thin film using experimental and theoretical techniques of polarized neutron reflectometry, magnetoresistance measurement and density functional theory. Unlike bulk Nd, thin film specimen is a very poor electrical conductor. Also, as grown thin film on silicon substrate does not exhibit any magnetism in zero field. However, moderate inplane field application of $H$ = 1.2 T tends to induce weak magnetism in the system at low temperature of $T$ $<$ 18 K, which coincides with an unusual cross-over behavior in magnetoresistance. The study provides important insight in the physical characteristics of Nd thin film that are atypical for a magnetic system.
