12 citations · 32 across the 17 of their papers we have counts for
17 papers
Distinct Roles of Hydrogen in Superconducting and Ferromagnetic Phases of CoZrH
Yuto Watanabe, Takayoshi Katase, Daisuke Takegami +1
Hydrogenation offers a versatile route to tuning the physical properties of intermetallic compounds. In this study, we synthesized CoZrH with different hydrogen content…
Insight into high-entropy effect in body-centered cubic superconducting alloys
Hanabusa Senga, Yuto Watanabe, Fubuki Iwase +6
We have characterized the superconducting critical temperature (), the Debye temperature (), the electronic specific heat coefficient, and the Vickers m…
Enhanced in eutectic high-entropy alloy superconductors Hf-Nb-Sc-Ti-Zr
Issei Kubo, Yuto Watanabe, Shuma Kawashima +4
The present investigation into the superconducting properties of eutectic high-entropy alloy (HEA) Hf-Nb-Sc-Ti-Zr systems reveals an enhanced superconducting critical temperature (…
Thermal rectification in jointless Pb solid wire
Masayuki Mashiko, Poonam Rani, Yuto Watanabe +1
Thermal rectification is observed in jointless Pb wires at temperatures near the superconducting transition of Pb under magnetic fields. Using different magnetic-field (H) response…
Uniaxial negative thermal expansion in a weak-itinerant-ferromagnetic phase of CoZrH
Yuto Watanabe, Kota Suzuki, Takayoshi Katase +3
We discovered unique uniaxial negative thermal expansion (NTE) behavior for a weak-itinerant-ferromagnetic phase of CoZrH. CoZr is known as a superconductor ex…
Huge anisotropic magneto-thermal switching in high-purity polycrystalline compensated metals
Poonam Rani, Yuto Watanabe, Takuma Shiga +6
Magneto-thermal transport is a promising physical property for thermal management applications. Magneto-thermal switching enables active control of heat flows, and a high switching…
Investigation of superconducting gap of high-entropy telluride AgInSnPbBiTe5
Asato Seshita, Hirotaka Okabe, Riad Kasem +9
We performed transverse-field muon spin relaxation/rotation (TF-μSR) on a high-entropy-type (HE-type) superconductor AgInSnPbBiTe5. The emergence of bulk superconducting states was…
Nonvolatile magneto-thermal switching driven by vortex trapping in commercial In-Sn solder
Poonam Rani, Takumi Murakami, Yuto Watanabe +4
Magneto-thermal switching (MTS) is a key technology for efficient thermal management. Recently, large MTS with nonvolatility has been observed in Sn-Pb solders [H. Arima et al., Co…
Influence of trapped magnetic field of Sn-Pb solders on electrical resistivity measurement: an example of superconducting transition of Sn
Takumi Ichikawa, Yuto Watanabe, Takumi Murakami +3
We examined the affection of the flux-trapped states of Sn60-Pb40 solders on superconducting properties of a Sn wire. The temperature dependence of electrical resistivity at H = 0…
Superconducting properties of eutectic high-entropy alloy superconductor NbScTiZr
Jiro Kitagawa, Haruto Ueta, Yuto Watanabe +3
The influence of annealing on the superconducting properties of eutectic high-entropy alloy NbScTiZr was examined by measuring magnetization, electrical resistivity, and zero-field…
Specific heat analyses on optical-phonon-derived uniaxial negative thermal expansion system Zr ( = Fe and CoNi)
Yuto Watanabe, Ceren Tayran, Md. Riad Kasem +4
Recently, huge uniaxial negative thermal expansion (NTE) along a -axis has been observed in transition-metal () zirconides Zr with a tetragonal CuAl-type str…
Superconducting properties and electronic structure of CuAl2-type transition-metal zirconide Fe1-xNixZr2
Ryunosuke Shimada, Yuto Watanabe, Lorenzo Tortora +8
CuAl2-type transition-metal (Tr) zirconides are superconductor family, and the Tr-site element substitution largely modifies its transition temperature (Tc). Here, we synthesized p…
Vortex formation and exotic superconducting states in field-cooled Sn-Pb solders
Takumi Murakami, Md. Riad Kasem, Hiroto Arima +3
Formation of vortices is a typical phenomenon of type-II superconductors under magnetic fields (H). In contrast, type-I superconductors do not host vortices because of their Meissn…
Observation of superconductivity and enhanced upper critical field of -carbide-type oxide ZrPdO
Yuto Watanabe, Akira Miura, Chikako Moriyoshi +2
We report the first observation of bulk superconductivity of a -carbide-type oxide ZrPdO. The crystal structure and the superconducting properties were studied throu…
Pressure-induced volumetric negative thermal expansion in CoZr2 superconductor
Yuto Watanabe, Hiroto Arima, Saori Kawaguchi-Imada +10
We investigate the thermal expansion and superconducting properties of a CuAl2-type (tetragonal) superconductor CoZr2 under high pressures. We perform high-pressure synchrotron X-r…
Metallurgy, superconductivity, and hardness of a new high-entropy alloy superconductor Ti-Hf-Nb-Ta-Re
Takuma Hattori, Yuto Watanabe, Terukazu Nishizaki +5
We explored quinary body-centered cubic (bcc) high-entropy alloy (HEA) superconductors with valence electron concentrations (VECs) ranging from 4.6 to 5.0, a domain that has receiv…
Sign change in c-axis thermal expansion and lattice collapse by Ni substitution in Co1-xNixZr2 superconductors
Yuto Watanabe, Hiroto Arima, Hidetomo Usui +1
We investigated the structural, electronic, and superconducting properties of Co1-xNixZr2, in which c-axis thermal expansion is systematically controlled. At x (smaller than) 0.3,…