Lab Home | Phone | Search
	Center for Nonlinear Studies
	Home  ▶ People   CNLS Staff Members   Executive Committee   Postdocs   Visitors   Students   Research   Publications  ▶ Conferences   Workshops   Sponsorship  ▶ Talks   Seminars   Postdoc Seminars Archive   Quantum Lunch   Quantum Lunch Archive   P/T Colloquia   Archive   Ulam Scholar     Postdoc Nominations  ▶ Student Requests   Student Program  ▶ Visitor Requests   Description   Past Visitors  ▶ Services   General     History of CNLS     Maps, Directions   T-Division   LANL				Wednesday, June 14, 20172:00 PM - 3:00 PMMPA-CMMS Conference Room, TA-3, Bldg 32 CMS Colloquium Topological Kondo insulators and topological crystalline Kondo insulators: theory, experiments and remaining puzzles Kai SunUniversity of Michigan In the study of strongly-correlated insulators, a long-standing puzzle remained open for over 40 years. Some Kondo insulators (or mixed-valent insulators) display strange electrical transport that cannot be understood if one assumes that it is governed by the three-dimensional bulk. In this talk, I show that some 3D Kondo insulators have the right ingredients to be topological insulators and topological crystalline insulators, where the topologically protected surface states offer a natural explanation for the long-standing puzzle mentioned above. In addition, I will review recent experimental effort to test these ideas in SmB$_6$, and compare quantitatively results from various experiments, including electronic transport, quantum oscillations, STM, APRES and heat transport. Host: Shizeng Lin