Spin-polarized angle-resolved photoelectron spectroscopy of the so-predicted Kondo topological insulator SmB6

Shigemasa Suga, Kazuyuki Sakamoto, Taichi Okuda +13

Undoped and slightly Eu-doped SmB6 show the opening of a gap with decreasing temperature below ~150 K. The spectral shapes near the Fermi level (EF) at 15 K have shown strong incre…