稀磁半导体——自旋和电荷的桥梁

Diluted magnetic semiconductors——bridging spin and charge

稀磁半导体可能同时利用载流子的自旋和电荷自由度构造将磁、电集于一体的半导体器件 .尤其是铁磁半导体材料的出现带动了半导体自旋电子学的发展 .室温铁磁半导体材料的制备 ,半导体材料中有效的自旋注入 ,以及自旋在半导体结构中输运和操作已成为目前半导体自旋电子学领域中的热门课题 .稀磁半导体呈现出强烈的自旋相关的光学性质和输运性质 。

Diluted magnetic semiconductors could be used to construct magnetic and electronic device that utilize simultaneously the spin and charge degrees of freedom of carrier. Recent research on ferromagnetic semiconductors has stimulates the development of spintronics. The fabrication of room-temperature ferromagnetic semiconductors, high-efficiency spin injection, and spin manipulation and transport in semiconductors have attracted considerable interest in the past few years. Diluted magnetic semiconductors exhibit strong spin-dependent optical and transport properties, and these effects provide a physical basis for semiconductor spintronics devices.