158 citations · 706 across the 25 of their papers we have counts for
4 papers · 1 filter
Superconductivity in higher titanium oxides
K. Yoshimatsu, O. Sakata, A. Ohtomo
Recent renewal of the highest transition temperature in a conventional superconductor of the sulfer hydride attracts much attention to exploring simple compounds with the lighter e…
Insulator to metal transition of WO3 epitaxial films induced by electrochemical Li-ion intercalation
Kohei Yoshimatsu, Takuto Soma, Akira Ohtomo
We investigated systematic evolutions of structural and electronic properties of LixWO3 films, induced by Li-ion electrochemical reactions. Chronoamperometric Li-ion intercalation…
Epitaxial growth of hexagonal tungsten bronze CsxWO3 films in superconducting phase region exceeding bulk limit
Takuto Soma, Kohei Yoshimatsu, Akira Ohtomo
We report epitaxial synthesis of superconducting CsxWO3 (x = 0.11, 0.20, 0.31) films on Y-stabilized ZrO2 (111) substrates. The hexagonal crystal structure was verified not only fo…
Phonon-Dressed Two-Dimensional Carriers on the ZnO Surface
R. Yukawa, K. Ozawa, S. Yamamoto +8
Two-dimensional (2D) metallic states formed on the ZnO(100) surface by hydrogen adsorption have been investigated using angle-resolved photoelectron spectroscopy (ARPES).…