28 citations · 138 across the 21 of their papers we have counts for
5 papers · 1 filter
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…
Observation of nonvolatile magneto-thermal switching in superconductors
Hiroto Arima, Md. Riad Kasem, Hossein Sepehri-Amin +5
Applying a magnetic field to a solid changes its thermal-transport properties. Although such magneto-thermal-transport phenomena are usually small effects, giant magneto-thermal re…
Large magneto-thermal-switching ratio in superconducting Pb wires
Miku Yoshida, Hiroto Arima, Aichi Yamashita +2
Thermal switching by magnetic fields is one of the important functionalities in thermal management technologies. In low-temperature devices, superconducting states can be used as a…
Uniaxial negative thermal expansion in an orthorhombic superconductor CoZr3
Hiroto Arima, Tatsuki Inui, Aichi Yamashita +5
We investigated the temperature evolution of crystal structure of orthorhombic CoZr3, which is a superconductor with a transition temperature of 4.3 K, by synchrotron and laborator…
Axis thermal expansion switching in transition-metal zirconides TrZr2 by tuning the c/a ratio
Hiroto Arima, Md. Riad Kasem, Yoshikazu Mizuguchi
This study examines the temperature-dependent evolution of the lattice constants for various CuAl2-type compounds, including NiZr2, (Co,Rh,Ir)Zr2, (Fe,Co,Rh,Ir)Zr2, and (Co,Ni,Cu,R…