119 citations · 652 across the 31 of their papers we have counts for
15 papers · 1 filter
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…
Observing and modeling the sequential pairwise reactions that drive solid-state ceramic synthesis
Akira Miura, Christopher J. Bartel, Yusuke Goto +11
Solid-state synthesis from powder precursors is the primary processing route to advanced multicomponent ceramic materials. Designing ceramic synthesis routes is usually a laborious…
Crystal Structure and Thermoelectric Transport Properties of As-Doped Layered Pnictogen Oxyselenides NdO0.8F0.2Sb1-xAsxSe2
Kota Morino, Yosuke Goto, Akira Miura +3
We report the synthesis and thermoelectric transport properties of As-doped layered pnictogen oxyselenides NdO0.8F0.2Sb1-xAsxSe2 (x < 0.7), which are predicted to show high-perform…
Effect of Bi Substitution on Thermoelectric Properties of SbSe2-based Layered Compounds NdOFSbBiSe
Yosuke Goto, Akira Miura, Chikako Moriyoshi +2
Although SbSe2-based layered compounds have been predicted to be high-performance thermoelectric materials and topological materials, most of these compounds obtained experimentall…
Synthesis, Crystal Structure, and Thermoelectric Properties of Layered Antimony Selenides REOSbSe2 (RE = La, Ce)
Yosuke Goto, Akira Miura, Ryosuke Sakagami +4
Inspired by the recent first-principles calculations showing the high thermoelectric performance of layered pnictogen chalcogenides, we experimentally characterise the crystal stru…
Synthesis, Crystal Structure, and Physical Properties of New Layered Oxychalcogenide La2O2Bi3AgS6
Yudai Hijikata, Tomohiro Abe, Chikako Moriyoshi +7
We have synthesized a new layered oxychalcogenide La2O2Bi3AgS6. From synchrotron X-ray diffraction and Rietveld refinement, the crystal structure of La2O2Bi3AgS6 was refined using…
Crystal structure, site selectivity, and electronic structure of layered chalcogenide LaOBiPbS3
Y. Mizuguchi, Y. Hijikata, T. Abe +10
We have investigated the crystal structure of LaOBiPbS3 using neutron diffraction and synchrotron X-ray diffraction. From structural refinements, we found that the two metal sites,…
Origin of high piezoelectricity at the morphotropic phase boundary (MPB) in (Pb0.94Sr0.06)(ZrxTi1-x)O3
Ravindra Singh Solanki, Sunil Kumar Mishra, Chikako Moriyoshi +4
In this work, we address the issue of peaking of piezoelectric response at a particular composition in the morphotropic phase boundary (MPB) region of (Pb0.940Sr0.06)(ZrxTi1-x)O3 (…
Improper ferroelectricity in stuffed aluminate sodalites for pyroelectric energy harvesting
Yusaku Maeda, Toru Wakamatsu, Ayako Konishi +6
Ferroelectricity in stuffed aluminate sodalites is demonstrated in the present study. The present results indicate that stuffed aluminate sodalites exhibit excellent performance as…
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…
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…
Structures and Optical Absorption of Bi2OS2 and LaOBiS2
Akira Miura, Yoshikazu Mizuguchi, Takahiro Takei +5
The band gaps of isostructural Bi2OS2 and LaOBiS2 were examined using optical absorption and discussed with the band structures calculated based on the crystal structures determine…
Ground state of (Pb0.94Sr0.06)(Zr0.530Ti0.470)O3 in the morphotropic phase boundary region: Evidence for a monoclinic Cc space group
Ravindra Singh Solanki, Akhilesh Kumar Singh, S. K. Mishra +5
The antiferrodistortive (AFD) phase transition for a pseudotetragonal composition of Pb(Zr0.530Ti0.470)O3 (PZT) doped with 6% Sr has been investigated using sound velocity (4 to 32…
Antiferrodistortive Phase Transition in Pseudorhombohedral (Pb0.94Sr0.06)(Zr0.550Ti0.450)O3 : A Combined Synchrotron x-ray and Neutron Powder Diffraction Study
Ravindra Singh Solanki, S. K. Mishra, Anatoliy Senyshyn +5
The controversies about the structure of the true ground state of pseudorhombohedral compositions of Pb(ZrxTi1-x)O3 (PZT) are addressed using a 6% Sr2+ substituted sample with x=0.…
Evidence for a tricritical point coinciding with the triple point in (Pb0.94Sr0.06)(ZrxTi1-x)O3 : A combined synchrotron x-ray diffraction, dielectric and Landau theory study
Ravindra Singh Solanki, S. K. Mishra, Yoshihiro Kuroiwa +2
We present here results of high resolution synchrotron x-ray diffraction (SXRD) and dielectric studies in conjunction with Landau theory considerations on (Pb0.94Sr0.06)(ZrxTi1-x)O…