T. Hasegawa

collaborators

3 papers

cond-mat.str-el2025

Acoustic phonon softening and lattice instability driven by on-site $f$ - $d$ hybridization in CeCoSi

Takeshi Matsumura, Takumi Hasegawa, Ryuma Nakajima +5

Soft phonon modes in tetragonal CeCoSi, which undergoes a structural transition at $T_{0} = 12$ K followed by antiferromagnetic order at $T_{N} = 9.5$ K, have been investigated us…

cond-mat.mtrl-sci2025

Band-selective Plasmonic Polaron in Thermoelectric Semimetal Ta $_{2}$ PdSe $_{6}$ with ultra-high power factor

Daiki Ootsuki, Akitoshi Nakano, Urara Maruoka +6

We report the electronic structure of the thermoelectric semimetal Ta $_{2}$ PdSe $_{6}$ with a large thermoelectric power factor and giant Peltier conductivity by means of angle-resolved…

cond-mat.supr-con2024

Linear Magnetoresistance and Type-I Superconductivity in $I^^{2}$ -IrSn $_{4}$

Nazir Ahmad, Shunsuke Shimada, Takumi Hasegawa +6

Layered material $I^^{2}$ -IrSn $_{4}$ ( $I 4_{1} / a c d$ , $D_{4 h}^{20}$ , #142), whose electron bands have symmetry-enforced Dirac points, was investigated using high-quality single crystals. It…

Acoustic phonon softening and lattice instability driven by on-site f-d hybridization in CeCoSi

Band-selective Plasmonic Polaron in Thermoelectric Semimetal Ta2​PdSe6​ with ultra-high power factor

Linear Magnetoresistance and Type-I Superconductivity in I^2-IrSn4​

Acoustic phonon softening and lattice instability driven by on-site $f$ - $d$ hybridization in CeCoSi

Band-selective Plasmonic Polaron in Thermoelectric Semimetal Ta $_{2}$ PdSe $_{6}$ with ultra-high power factor

Linear Magnetoresistance and Type-I Superconductivity in $I^^{2}$ -IrSn $_{4}$