Bulk and surface electron dynamics in a p-type topological insulator SnSb2Te4

D. Niesner,1 S. Otto,1 V. Hermann,1 Th. Fauster,1 T. V. Menshchikova,2 S. V. Eremeev,2,3 Z. S. Aliev,4 I. R. Amiraslanov,4,5 M. B. Babanly,4 P. M. Echenique,6 and E. V. Chulkov6,2 1Lehrstuhl fur Festkorperphysik, Universitat Erlangen-Nurnberg, D-91058 Erlangen, Germany 2Tomsk State University, pr. Lenina 36, 634050 Tomsk, Russia 3Institute of Strength Physics and Materials Science SB RAS, pr. Academicheskiy 2/4, 634021 Tomsk, Russia 4Baku State University, General and Inorganic Chemistry Department, Baku, Azerbaijan 5Institute of Physics, Azerbaijan National Academy of Science, Baku, Azerbaijan 6Donostia International Physics Center (DIPC), Departamento de Fisica de Materiales and CFM-MPC UPV/EHU, 20080 San Sebastian, Spain (Received 11 September 2013; revised manuscript received 16 January 2014; published 14 February 2014)