activity
20052026
most citedPhonon softening and double-well potential formation due to electron-phonon interaction in heavy-fermion systems

61 citations · 106 across the 6 of their papers we have counts for

collaborators

6 papers

cond-mat.str-el2026

Ultrasonic Observation of Slowing Down of Multipole Fluctuations in SrRuO

Ryosuke Kurihara, Mitsuhiro Akatsu, Shunsuke Yaoita +5

We performed ultrasonic measurements on the unconventional superconductor SrRuO to investigate the dynamical properties of the electronic states near its superconducting tr…

cond-mat.str-el2022★ 2 cited

Elastic Soft Mode and Electric Quadrupole Response in Excitonic Insulator Candidate (TaV)NiSe: Contribution of Electron-Phonon Interaction

Ryosuke Kurihara, Yusuke Hirose, Sumika Sano +4

We performed ultrasonic measurements on (TaV)NiSe to investigate the contribution of acoustic phonons at the zone center to structural and possible exci…

cond-mat.str-el2017★ 22 cited

Critical Slowing Down of Quadrupole and Hexadecapole Orderings in Iron Pnictide Superconductor

Ryosuke Kurihara, Keisuke Mitsumoto, Mitsuhiro Akatsu +4

Ultrasonic measurements have been carried out to investigate the critical dynamics of structural and superconducting transitions due to degenerate orbital bands in iron pnictide co…

cond-mat.str-el2013★ 9 cited

The role of hyperfine coupling in magnetic and quadrupolar ordering of Pr3Pd20Si6

Lucia Steinke, Keisuke Mitsumoto, Corneliu F. Miclea +8

We study the ternary clathrate Pr3Pd20Si6 in specific heat and AC-susceptibility measurements on a high-quality single crystal, distinguishing antiferromagnetic (AFM) and antiferro…

cond-mat.str-el2010★ 12 cited

Cooperative Effect of Coulomb Interaction and Electron-Phonon Coupling on the Heavy Fermion State in the Two-Orbital Periodic Anderson Model

Keisuke Mitsumoto, Yoshiaki Ono

We investigate the two-orbital periodic Anderson model, where the local orbital fluctuations of f-electrons couple with a two-fold degenerate Jahn-Teller phonon, by using the dynam…

cond-mat.str-el2005★ 61 cited

Phonon softening and double-well potential formation due to electron-phonon interaction in heavy-fermion systems

Keisuke Mitsumoto, Yoshiaki Ono

We investigate the periodic Anderson-Holstein model by using the dynamical mean-field theory combined with the exact diagonalization method. For the strong electron-phonon coupling…