题目： Crystal growth of cuprate and iron chalcogenide superconductors by travelling floating zone and Bridgman methods
报告人：Kazimierz Conder
Laboratory for Developments and Methods, Paul Scherrer Institute, Switzerland
摘要：A principle and application of Travelling Solvent Floating Zone (TSFZ) method for crystallization of La2-xSrxCuO4 and spin ladder Sr14-xCaxCu24O41 cuprate superconductors will be presented. For the later the mirror furnace was modified to ensure a stable crystal growth at oxygen pressure up to 35bar. Iron-chalcogenide single crystals Fe1+ySexTe1-x and A1-xFe2-ySe2-z (A=K, Rb, Cs) were grown by the Bridgman method. Alkali metal intercalated crystals are showing superconductivity at about 30K and coexistence of magnetism and superconductivity.
时间：2011年6月3日星期五下午3:00
地点：物理楼一楼会议室
