4 papers · 1 filter
High Pressure Study of Structural Phase Transitions and Superconductivity in La1.48Nd0.4Sr0.12CuO4
M. K. Crawford, R. L. Harlow, S. Deemyad +8
We have determined the crystal structures and superconducting transition temperatures of La1.48Nd0.4Sr0.12CuO4 under nearly hydrostatic pressures in diamond anvil cells to 5.0 GPa…
Enhancement of Critical Current across Single Grain Boundaries in YBa2Cu3Ox and Search for Superconductivity in Alkali Metals
T. Tomita, S. Deemyad, J. J. Hamlin +5
The ability of single grain boundaries in YBa2Cu3Ox bicrystalline rings to carry electrical current is found to be significantly enhanced under hydrostatic pressure. Nearly hydrost…
Superconducting phase diagram of Li Metal in nearly hydrostatic pressures up to 67 GPa
Shanti Deemyad, James S. Schilling
The dependence of the superconducting transition temperature T_{c} on nearly hydrostatic pressure has been determined to 67 GPa in an ac susceptibility measurement for a Li sample…
Hydrostatic Pressure Dependence of the Superconducting and Structural Properties of MgB2
J. S. Schilling, J. D. Jorgensen, D. G. Hinks +4
In this paper we report parallel in situ neutron powder diffraction and Tc(P) measurements versus pressure on the same MgB2 sample in a He-gas apparatus to 0.6 GPa; in addition, we…