Synthesis, Characterization, and Physical Properties of Metal Chalcogenides

该项目的目标是合成，表征和测量固态金属硫属化物（硫属化物是含有硫，硒或碲的化合物）的物理性质。金属硫属化物显示出非常丰富的化学性质，与氧化物相比，这种化学性质有着根本的不同，而且研究得更少。 待探索的领域包括三元过渡金属/稀土金属/硫属化物、硫属化物替代化学、稀土氧硫属化物、稀土/铜/碲化物衍生物和热电行为以及钍和铀硫属化物。新材料的表征将包括单晶X射线方法的结构测定和物理性能的测量，包括电导率，热电势和磁化率。这项研究项目的最终目标是使固态材料的化学性质更可预测。%表现出新的物理性质，如电子，光学，热电和磁性的新型固态材料的合成，以及将这些物理性质与组成和结构相关联，是工业界高度关注的优先领域，在这些领域接受培训的学生在就业市场上非常有竞争力。

The goal of this project is to synthesize, characterize, and measure the physical properties of solid-state metal chalcogenides (a chalcogenide being a compound that contains sulfur, selenium, or tellurium). Metal chalcogenides show a very rich chemistry that is fundamentally different and much less explored than that of the oxides. Areas to be explored include ternary transition-metal/rare-earth-metal/chalcogenides, chalcogenide substitutional chemistry, rare-earth oxychalcogenides, rare-earth/copper/telluride derivatives and thermoelectric behavior, and thorium and uranium chalcogenides. Characterization of the new materials will include structural determinations by single-crystal X-ray methods and the measurement of physical properties to include electrical conductivity, thermopower, and magnetic susceptibility. The ultimate goal of this research project is to make the chemistry of solid-state materials more predictable.%%%The synthesis of new classes of solid-state materials exhibiting novel physical properties such as electronic, optical, thermoelectric, and magnetic together with correlating these physical properties with composition and structure are priority areas of high interest to industry, and students trained in these areas are very competitive in the job market.