講演題目：　 Impurity states in unconventional superconductors 

講　師　：　A.V. Balatsky
　　　　　　　(Los Alamos,National Laboratory)

日　時　：　平成12年10月17日（火）　前の講演が終わり次第
場　所　：　北海道大学大学院理学研究科物理学専攻　大学院講義室
　　　　　　　理学部　2号館（2−11号室）

要　旨　：
　 Recently we have seen two parallel developments where on the one hand the　theory predictions about impurity induced states in high-Tc superconductors　were made and on the other hand STM data allowed for a novel and important　observations of the impurity induced states and changes in the nanoscale　electronic structure of high-Tc materials. I will discuss 1) the structure　of impurity induced intragap resonances, 2) the distortion of the order　parameter by impurity and d+id' gap induction by magnetic field and magnetic　impurity and 3) proposal for the Josephson scanning tunneling microscope　with superconducting tip.
　

世話人　　小田　研　（北海道大学大学院理学研究科）
　　　　　　　　　(011-706-3575、moda@sci.hokudai.ac.jp)