Physics and Chemistry of Semimagnetic Semiconductors

这是一个跨学科的合作计划（与彼得A。 马萨诸塞州理工学院的沃尔夫和弗朗西斯比特 国家磁铁实验室和布朗大学的亚伦沃尔德）， 研究半磁性材料物理和晶体化学 半导体，特别是锰、铁、镍和钴， 掺杂的亚锡酸盐晶体，含锰的II-VI族化合物， 铁和锰黄铜矿。 重点将放在大 亚锡酸盐中的极化子效应，金属-绝缘体转变， 磁性和汞-镉-铁-硒的新状态， 晶体化学来确定磁性离子是如何被结合的 在共价键合的半导体中。 实验技术 将包括拉曼散射，磁反射，发光， 磁化强度、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.