3 papers
cond-mat.str-el2018
Electronic properties across metal-insulator transition in β-pyrochlore-type CsW2O6 epitaxial films
Takuto Soma, Kohei Yoshimatsu, Koji Horiba +2
In CsW2O6, which undergoes a metal-insulator transition (MIT) at 213 K, the emergence of exotic properties associated with rattling motion of Cs is expected owing to its characteri…
cond-mat.mtrl-sci2016
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…
cond-mat.mtrl-sci2016
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…