132 citations · 256 across the 9 of their papers we have counts for
9 papers
Pb Substitution Effects on Lattice and Electronic System of the BiS2-based Superconductors La(O F)BiS2
Miku Sasaki, Kotaro Inada, Fumito Mori +7
We examined the effect of Pb substitution in the layered superconductor LaO0.5F0.5Bi1-xPbxS2 (x=0~0.15) through the measurements of the resistivity, thermal expansion, specific hea…
Suppression of Superfluidity of He in a Nanoporous Glass by Preplating a Kr Layer
Yoshiyuki Shibayama, Keiya Shirahama
Helium in nanoporous media has attracted much interest as a model Bose system with disorder and confinement. Here we have examined how a change in porous structure by preplating a…
Gigantic Maximum of Nanoscale Noncontact Friction
Kohta Saitoh, Kenichi Hayashi, Yoshiyuki Shibayama +1
We report measurements of noncontact friction between surfaces of NbSe and SrTiO, and a sharp Pt-Ir tip that is oscillated laterally by a quartz tuning fork cantilever.…
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…
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…