SFB 689: Spin Phenomena in Reduced Dimensions

合作研究中心的重点主要是自旋电子学，其中一个试图利用，除了基本电荷的载体，他们的磁矩，自旋，作为信息载体。为了达到这一目标，有效的自旋注入、自旋输运以及自旋极化或自旋极化电流的控制、操纵和检测是基本要求。连接所有项目和项目领域的中心问题解决了降维电子系统中旋转自由度的表征、控制和操纵。作为降维系统，我们考虑半导体异质结，包含低维电荷载流子系统，隧道结，铁磁半导体材料（主要是GaMnAs）的薄层，被纳米图案化或嵌入半导体异质结，以及介观系统，点接触或分子系统。

The focus of the Collaborative Research Centre is mainly on spintronics where one attempts to employ, in addition to the elementary charge of the carriers, their magnetic moment, the spin, as information carrier. To reach this goal, efficient spin injection, spin transport and the control, manipulation and detection of spin polarisation or of spin polarised currents are essential requirements. The central problem interconnecting all projects and project areas addresses the characterisation, control and manipulation of the spin degree of freedom in electronic systems of reduced dimension. As systems of reduced dimension we consider semiconductor-heterojunctions, containing low-dimensional charge carrier systems, tunnel junctions, thin layers of ferromagnetic semiconductor material (mainly GaMnAs), being nanopatterned or embedded in semiconductor heterojunctions, as well as mesoscopic systems, point contacts or molecular systems.