报告题目(中文)：Mo3Sb7中超导，结构相变和磁性相互作用
报告题目(英文)：Interplay between structural anomaly, magnetism, and superconductivity in Mo3Sb7

报告内容简介：Despite a relatively low superconducting transition temperature Tc = 2.08 K, the Zintl compound Mo3Sb7 has attracted considerable interest due to the possible involvement of magnetism in superconducting pairing, and promising thermoelectric performance with proper doping. Mo3Sb7 crystallizes in Ir3Ge7-type cubic structure with space group Im3m at room temperature. A structure transition from cubic to tetragonal (I4/mmm) was observed at 53 K and this symmetry lowering is accompanied by the opening of a 120 K spin gap. So Mo3Sb7 provides an interesting platform to study the interplay between structural anomaly, magnetism, and superconductivity. In this talk, I will present the crystal growth, intrinsic physical properties of Mo3Sb7, and how chemical and hydrostatic pressures disturb the complex interplay between structural anomaly, magnetism, and superconductivity.
报告人简介(中文)：阎家强于2004年5月在美国德克萨斯大学奥斯汀分校取得材料科学与工程博士学位。2005-2007年在艾姆兹实验室中子与Ｘ光课题组做博士后，2008-2010年在艾姆兹实验室新材料合成课题组工作。2011年加入田纳西大学材料系和橡树岭实验室强关联材料课题组。目前研究兴趣主要集中在: (1)新型材料设计与合成，晶体生长，材料本征性质测量; (2) 4d/5d过渡金属氧化物中自旋轨道耦合; (3)材料中超导，结构相变和磁性相互作用。目前共发表论文约90篇，　其中包括10篇　Nature 及其子刊，　1篇PNAS，1篇JACS，10篇PRL，55篇PRB，总引用～2100。
报告人单位(中文)：田纳西大学
报告人单位(英文)：University of Tennessee