132 citations · 321 across the 20 of their papers we have counts for
5 papers · 1 filter
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…
Microwave-Absorption-Induced Heating of Surface State Electrons on Liquid 3He
Denis Konstantinov, Hanako Isshiki, Hikota Akimoto +3
A resonance-induced change in the resistivity of the surface state electrons (SSE) exposed to the microwave (MW) radiation is observed. The MW frequency corresponds to the transiti…
Liquid-Solid Transition and Phase Diagram of ^4He Confined in Nanoporous Glass
Keiichi Yamamoto, Yoshiyuki Shibayama, Keiya Shirahama
We have studied the liquid - solid (L-S) phase transition of ^4He confined in nanoporous glass, which has interconnected nanopores of 2.5 nm in diameter. The L-S boundary is determ…
Microwave Absorption of Surface-State Electrons on Liquid He
Hanako Isshiki, Denis Konstantinov, Hikota Akimoto +2
We have investigated the intersubband transitions of surface state electrons (SSE) on liquid He induced by microwave radiation at temperatures from 1.1 K down to 0.01 K. Above…