II-VI Semiconductors, Diluted Magnetic Semiconductors (DMS) and their Superlattices

该奖项由材料研究小组（MRG）计划颁发， 材料研究部将支持多名研究人员， 普渡大学的多学科研究项目 半导体、稀磁半导体（DMS）及其 亚微米异质结构。 的独特组合 DMS物质表现出的半导体和磁性 而II-VI族半导体中的宽带隙提供了 新材料和新技术的长期潜力。 的MRG 普渡大学的活动由R.L.教授领导。贡绍尔 和A.K.拉姆达斯，也涉及教授的研究小组 J. Furdyna在巴黎圣母院。 全面的材料准备、设计和制造， 以及一系列的物理测量和理论研究 将在该计划下进行。 这些包括 光谱研究（拉曼，布里渊，红外， 光致发光、压电和光调制反射率）; 透射电子显微镜和法拉第效应及相关 磁光研究 晶体中生长的块状晶体 生长设备以及生长在 分子束外延和原子层外延设施将 特别准备处理重要的问题， 基础材料科学和工程，并具有潜力， 从而带来新的技术和设备。 集体和地方化 激发（振动，电子，磁）;的性质 亚微米异质结构中的界面; 亚微米结构中的激发;交换 相互作用、磁有序和量子威尔斯物理 是一系列物理问题的例证 在普渡MRG活动的范围内。

This award from the Materials Research Group (MRG) Program of the Division of Materials Research will support a multi-investigator, multi-disciplinary research program at Purdue University on II-VI semiconductors, diluted magnetic semiconductors (DMS), and their sub-micron heterostructures. The unique combination of semiconducting and magnetic properties exhibited by DMS substances and the wide band gaps available in II-VI semiconductors offer long-term potential for new materials and technology. The MRG activity at Purdue University is headed by Professors R.L. Gunshor and A.K. Ramdas, and also involves the research group of Professor J. Furdyna at Notre Dame. Comprehensive materials preparation, design, and fabrication, as well as a range of physical measurements and theoretical studies will be carried out under the program. These include spectroscopic studies (Raman, Brillouin, infrared, photoluminescence, piezo- and photo-modulated reflectivity); transmission electron microscopy; and Faraday effect and related magneto-optic investigations. Bulk crystals grown in the crystal growth facility as well as sub-micron heterostructures grown in Molecular Beam Epitaxy and Atomic Layer Epitaxy facilities will be specially prepared to address issues important in the context of basic materials science and engineering, and with potential for leading to new technology and devices. Collective and localized excitations (vibrational, electronic, magnetic); the nature of the interfaces in sub-micron heterostructures; the novel aspects of the excitations in the sub-micron structures; exchange interaction, magnetic ordering, and the physics of quantum wells are illustrative examples of the wide range of physical problems within the scope of the Purdue MRG activity.