Physics and Chemistry of Semimagnetic Semiconductors

这是一个跨学科合作项目（与麻省理工学院的Peter a . Wolff和布朗大学的Francis Bitter国家磁铁实验室和Aaron Wold合作），研究半磁性半导体的物理和晶体化学，特别是锰、铁、镍和钴掺杂的锡酸盐晶体，含锰和铁的II-VI化合物，和manganese-chalcopyrites。重点将放在锡硅酸盐中的大极化子效应，金属-绝缘体转变，汞-镉-铁-硒的磁性和新状态，以及晶体化学，以确定磁性离子如何结合在共价键半导体中。实验技术将包括拉曼散射、磁反射、发光、磁化、磁化率、电输运和非线性光学。

This is a collaborative interdisciplinary program (with Peter A. Wolff at Massachusetts Institute of Technology and Francis Bitter National Magnet Labotatory and Aaron Wold at Brown University) to study physics and crystal chemistry of semimagnetic semiconductors, specifically manganese, iron, nickel and cobalt- doped stannite crystals, II-VI compounds containing manganese and iron, and manganese-chalcopyrites. Emphasis will be on large polaron effects in stannites, metal-insulator transition, magnetism and novel states of mercury-cadmium-iron-selenium, and crystal chemistry to determine how magnetic ions are incorporated in covalently-bonded semiconductors. Experimental techniques will include Raman scattering, magnetoreflectance, luminescence, magnetization, susceptibility, electrical transport and nonlinear optics.