19 citations · 41 across the 10 of their papers we have counts for
10 papers
Stabilization and high thermoelectric performance of high-entropy-type cubic AgBi(S, Se, Te)2
Asato Seshita, Aichi Yamashita, Takeshi Fujita +6
As thermoelectric generators can convert waste heat into electricity, they play an important role in energy harvesting. The metal chalcogenide AgBiSe2 is one of the high-performanc…
Absence of Tc-Pinning Phenomenon Under High Pressure in High-Entropy REO0.5F0.5BiS2 Layered Superconductor
Yoshikazu Mizuguchi, Kazuki Yamane, Ryo Matsumoto +7
Recently, robustness of superconductivity (transition temperature, Tc) under high pressures has been observed in high-entropy alloy (HEA), bcc-type Ti-Zr-Hf-Nb-Ta, and HEA-type com…
Glassy atomic vibrations and blurry electronic structures created by local structural disorders in high-entropy metal telluride superconductors
Yoshikazu Mizuguchi, Hidetomo Usui, Rei Kurita +10
The motivation of this work is our recent observation of the robustness of superconductivity in a High-entropy (HE) superconductor Ag0.2In0.2Sn0.2Pb0.2Bi0.2Te (CsCl-type) to extern…
Estimation of Grüneisen Parameter of Layered Superconductor LaO0.5F0.5BiS2-xSex (x = 0.2, 0.4, 0.6, 0.8, 1.0)
Fysol Ibna Abbas, Kazuhisa Hoshi, Yuki Nakahira +7
The superconducting properties and structural parameters, including the Grüneisen parameter (γG), of the BiCh2-based (Ch: S, Se) layered superconductor LaO0.5F0.5BiS2-xSex were inv…
Lattice Anharmonicity in BiS2-Based Layered Superconductor RE(O,F)BiS2 (RE = La, Ce, Pr, Nd)
Fysol Ibna Abbas, Kazuhisa Hoshi, Aichi Yamashita +9
We studied Grüneisen parameter (γG) to investigate lattice anharmonicity in a layered BiS2-based superconductor system REO1-xFxBiS2 (RE = La, Ce, Pr, Nd), where in-plane chemical p…
Estimation of Grüneisen parameter of high-entropy-alloy-type functional materials
F. I. Abbas, Y. Nakahira, A. Yamashita +9
In functional materials like thermoelectric materials and superconductors, the interplay between functionality, electronic structure, and phonon characteristics is one of the key f…
Robustness of superconductivity to external pressure in high-entropy-alloy-type metal telluride AgInSnPbBiTe5
Md. Riad Kasem, Yuki Nakahira, Hitoshi Yamaoka +7
High-entropy-alloy (HEA) superconductors are a new class of disordered superconductors. In this study, we investigate the robustness of superconducting states in HEA-type metal tel…
Improvement of upper critical field by the compositionally-complex-alloy concept in A15 superconductor V3X (X: Al, Si, Ga, Ge, Sn)
Yuki Nakahira, Ryosuke Kiyama, Aichi Yamashita +5
Compositionally complex alloys (CCAs) are a new category of high-entropy materials containing more than two high-entropy phases in an alloy sample. We applied the concept of CCA to…
Ferroelectricity of Dion-Jacobson layered perovskites CsNdNbO and RbNdNbO
Sota Asaki, Hirofumi Akamatsu, George Hasegawa +5
Crystallography and dielectric properties in Dion-Jacobson layered perovskites, CsNdNbO and RbNdNbO, have been examined in dense polycrystalline samples, and polari…
An Unconventional Phase Transition in BaAl2O4 Driven by Two Competing Soft Modes
Y. Ishii, S. Mori, Y. Nakahira +4
We investigated the temperature dependence of the superlattice intensity and thermal diffuse scattering intensity of BaAl2O4, which has a network structure with corner-sharing AlO4…