Chinese Physics Letters · 2001 · 26 citations · 0 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsElectronic MaterialsSolid State PhysicsMetal MaterialsMetalsSuperconducting MaterialsAmbient Pressure EffectsBulk DensityCritical Bulk DensityCritical Current DensityCurrent DensityHigh-pressure SynthesisHigh-temperature SuperconductorsSuperconducting Properties
The new superconductor MgB2 has been prepared in two ways, by high pressure and ambient pressure synthesis. The superconducting properties were measured and compared. It is found that the sample prepared by high pressure is much denser than that prepared under ambient pressure. Accordingly the high pressure sample has a very narrow transition width and a much higher bulk critical current density.