Exchange and collaborative behavior of magnetic impurities in a disordered helical metal Event Date: 2015-04-30 admin AMO/QIS/CMT Speaker: Dr. Hector Ochoa (Donostia International Physics Center, Spain) / Host: Daw-Wei Wang (NTHU) Place: P512 of NCTS, 5F, 3rd General Building, Nat'l Tsing Hua Univ.