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Topological delocalization against Anderson localization observed in Bi-doped PbSb2Te4 disordered topological insulator
Yuya Hattori, Koichiro Yaji, Keisuke Sagisaka +6
We experimentally investigate the tendency of localization in the bulk and the topological surface states in topological insulators Pb(Bi1-xSbx)2Te4 (x=0.793-0.818) through detaile…
Topological surface states hybridized with bulk states of Bi-doped PbSb2Te4 revealed in quasiparticle interference
Yuya Hattori, Keisuke Sagisaka, Shunsuke Yoshizawa +2
Topological surface states of Bi-doped PbSb2Te4 [Pb(Bi0.20Sb0.80)2Te4] are investigated through analyses of quasiparticle interference (QPI) patterns observed by scanning tunneling…
Experimental verification of band convergence in Sr and Na codoped PbTe
Yuya Hattori, Shunsuke Yoshizawa, Keisuke Sagisaka +5
Scanning tunneling microscopy and transport measurements have been performed to investigate the electronic structure and its temperature dependence in heavily Sr and Na codoped PbT…