Studies of Finite Size Effects on Phase Transitions, using Spin Glasses

本项目涉及溅射多层膜的自旋 玻璃（SG）材料，通常为CuMn基SG， （通常较厚的）非磁性金属层。 这些样品 用于研究有限尺寸效应、临界行为和 静态和动态的三维交叉（3D-2D） SG的特性。 这项工作还包括各向异性 超导研究时，非磁性金属是 超导体 另外一项努力是专门进行调查 的1/f噪声的SG排序，并在介观单晶 半磁性半导体SG。

This project involves studies of sputtered multilayer films of spin glass (SG) materials, typically CuMn-based SG alternating with (generally thicker) layers of a non-magnetic metal. These samples are used to study finite size effects, critical behavior, and dimensional cross-over (3d-2d) in both static and dynamic properties of SGs. The work also includes anisotropic superconductivity studies when the non-magnetic metal is a superconductor. An additional effort is devoted to investigations of 1/f noise in SG ordering, and in a mesoscopic single crystal of a semi-magnetic semiconducting SG.