Hydrostatic Pressure Studies on Parent Phase SrFBiS2 of BiS2-Based Superconducting Family

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We have synthesized a new layered BiS2-based compound SrFBiS2. This compound has similar structure to BiS2. It is built up by stacking up SrF layers and NaCl-type BiS2 layers alternatively along the c axis. Electric transport measurement indicates that SrFBiS2 is a semiconductor. Thermal transport measurement shows that SrFBiS2 has a small thermal conductivity and large Seebeck coefficient. Fir...

Effect of Hydrostatic Pressure on the Incommensurate Phase of K2SeO4

Temperature-hydrostatic Pressure Studies on Partially Purified Inorganic Pyrophosphatase Activity.

Morita, Richard Y. (Oregon State University, Corvallis), and Paul F. Mathemeier. Temperature-hydrostatic pressure studies on partially purified inorganic pyrophosphatase activity. J. Bacteriol. 88:1667-1671. 1964.-Partially purified inorganic pyrophosphatase from Bacillus stearothermophilus demonstrated increased activity at 90 C with hydrostatic pressures of 100 to 1,100 atm. At 90 C, optimal ...

Dependence of the superconducting transition temperature of single and polycrystalline MgB2 on hydrostatic pressure

The dependence of Tc for MgB2 on purely hydrostatic or nearly hydrostatic pressure has been determined to 29 GPa for single-crystalline and to 32 GPa for polycrystalline samples, and found to be in good agreement. Tc decreases from 39 K at ambient pressure to 15 K at 32 GPa with an initial slope dTc=dP ’ 1:11ð2Þ K/GPa. Evidence is presented that the differing values of dTc=dP reported in the li...

Superconducting high pressure phase of germane.

High-pressure structures of germane (GeH4) are explored through ab initio evolutionary methodology to reveal a metallic monoclinic structure of C2/c (4 molecules/cell). The C2/c structure consists of layerlike motifs containing novel "H2" units. Enthalpy calculations suggest a remarkably wide decomposition (Ge+H2) pressure range of 0-196 GPa, above which C2/c structure is stable. Perturbative l...