@article{oai:kyutech.repo.nii.ac.jp:00006305, author = {Okazaki, Hiroyuki and Terashima, Kensei and Billington, David and Iwata, Keiji and Wakita, Takanori and Tanaka, Masashi and 田中, 将嗣 and Takano, Yoshihiko and Muraoka, Yuji and Yokoya, Takayoshi}, issue = {14}, journal = {Journal of Physics: Condensed Matter}, month = {Jan}, note = {CsBi4−x Pb x Te6 is synthesized and the superconductivity associated with the structural transition from Pb substitution is studied. Photoemission spectroscopy measurements are performed in order to elucidate the relationship between the electronic structure and the occurrence of the superconductivity. When Bi is substituted with Pb, an electron doping-like change in the electronic structure is directly observed which is contrary to the naive expectation of hole doping. This observation is consistent with band structure calculations and appears to be a unique characteristic of CsBi4−x Pb x Te6 because of the dissociation of Bi dimers upon Pb substitution. These results indicate that it may be possible to control the electron and hole doping via manipulating the Bi dimers through Pb substitution.}, pages = {145501-1--145501-7}, title = {Change in the electronic structure of the bismuth chalcogenide superconductor CsBi4-xPbxTe6 by dissociation of the bismuth dimers}, volume = {32}, year = {2020}, yomi = {タナカ, マサシ} }