101 citations · 154 across the 4 of their papers we have counts for
4 papers
Vortex Fluid Relaxation Model for Torsional Oscillation Responses of Solid 4He
Sergey K. Nemirovskii, Nobutaka Shimizu, Yoshinori Yasuta +1
A phenomenological model is developed to explain a new set of detailed torsional oscillator data for hcp 4He. The model is based on Anderson's idea of the vortex fluid (vortex tang…
Possible vortex fluid to supersolid transition in solid He below about 75 mK
Nobutaka Shimizu, Yoshinori Yasuta, Minoru Kubota
A detailed torsional oscillator (TO) study on a stable solid 4He sample at 49 bar with To = 0.5K, is reported to T below the dissipation peak at Tp . We find hysteretic behavior st…
Vortex Fluid State below an Onset Temperature T_0 of Solid 4He
Andrey Penzev, Yoshinori Yasuta, Minoru Kubota
Detailed studies of AC velocity Vac and temperature dependence of torsional oscillator responses of solid 4He are reported. A characteristic onset temperature T0 about 0.5 K is fou…
Annealing Effect for Supersolid Fraction in He
A. Penzev, Y. Yasuta, M. Kubota
We report on experimental confirmation of the non-classical rotational inertia (NCRI) in solid helium samples originally reported by Kim and Chan. The onset of NCRI was observed at…