47 citations · 200 across the 7 of their papers we have counts for
7 papers
Superconductivity in La1-xCexOBiSSe: carrier doping by mixed valence of Ce ions
Ryota Sogabe, Yosuke Goto, A. Nishida +2
We report the effects of Ce substitution on structural, electronic, and magnetic properties of layered bismuth-chalcogenide La1-xCexOBiSSe (x = 0-0.9), which are newly obtained in…
Intrinsic Phase Diagram of Superconductivity in the BiCh2-based System Without In-plane Disorder
Kouhei Nagasaka, Atsuhiro Nishida, Rajveer Jha +11
We have investigated the crystal structure and physical properties of LaO1-xFxBiSSe to reveal the intrinsic superconductivity phase diagram of the BiCh2-based layered compound fami…
Bi Substitution Effects on Superconductivity of Valence-Skip superconductor AgSnSe2
Yudai Hijikata, Atsuhiro Nishida, Kohei Nagasaka +5
We have synthesized AgSn1-xBixSe2 polycrystalline samples to investigate the effect of partial substitution of mixed-valence Sn by Bi3+ to the superconductivity of the valence-skip…
Compositional and temperature evolution of crystal structure of new thermoelectric compound LaOBiS2-xSex
Y. Mizuguchi, A. Miura, A. Nishida +7
We examined the crystal structure of the new thermoelectric material LaOBiS2-xSex, whose thermoelectric performance is enhanced by Se substitution, by using powder synchrotron X-ra…
Thermoelectric properties of new Bi-chalcogenide layered compounds
Yoshikazu Mizuguchi, Atsuhiro Nishida, Atsushi Omachi +1
The layered Bi-chalcogenide compounds have been drawing much attention as a new layered superconductor family since 2012. Due to the rich variation of crystal structure and constit…
Electronic Origins of Large Thermoelectric Power Factor of LaOBiS2-xSex
Atsuhiro Nishida, Hirotaka Nishiate, Chul-Ho Lee +2
We examined the electrical transport properties of densified LaOBiS2-xSex, which constitutes a new family of thermoelectric materials. The power factor increased with increasing co…
High thermoelectric performance and low thermal conductivity of densified LaOBiSSe
Atsuhiro Nishida, Osuke Miura, Chul-Ho Lee +1
In this study, we examined the thermoelectric properties of the layered bismuth-chalcogenide-based (BiCh2-based) compound LaOBiSSe, which is expected to be a new candidate material…