132 citations · 226 across the 6 of their papers we have counts for
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Superfluidity of He Confined in Nano-Porous Media
Keiya Shirahama, Keiichi Yamamoto, Yoshiyuki Shibayama
We have examined superfluid properties of He confined to a nano-porous Gelsil glass that has nanopores 2.5 nm in diameter. The pressure-temperature phase diagram was determined…
Thermodynamic Evidence for Nanoscale Bose-Einstein Condensation in ^4He Confined in Nanoporous Media
Keiichi Yamamoto, Yoshiyuki Shibayama, Keiya Shirahama
We report the measurements of the heat capacity of ^4He confined in nanoporous Gelsil glass that has nanopores of 2.5-nm diameter at pressures up to 5.3 MPa. The heat capacity has…
Anomalous Suppression of Superfluidity in He Confined in a Nano-porous Glass: Possible Quantum Phase Transition
K. Yamamoto, H. Nakashima, Y. Shibayama +1
We explore superfluidity for He confined in a porous glass which has nanopores of 2.5 nm in diameter, at pressures up to 5 MPa. With increasing pressure, the superfluidity is d…
Sliding Dynamics of the Wigner Crystal on Liquid He
Yoshiyuki Shibayama, Masaya Yamazaki, Hanako Isshiki +1
The Wigner crystal on liquid He accompanies with periodic corrugation of the He surface; dimples. The dynamics of the crystal is coupled with the motion and the deformation of the…