Superconductivity at 50 K in a mixed-phase Ca–P–O compound system treated by shock-wave pressure up to 65 GPa

Shock-wave pressure treatment up to 65 GPa has been applied to samples representing powdered mixtures of calcium and calcium phosphate in 1:1 volume ratio. Magnetometric measurements have revealed superconductivity of the samples at 50 K. By means of X-ray powder diffraction and magnetometric measur...

Full description

Saved in:
Bibliographic Details
Published in:Solid state communications 2010-07, Vol.150 (25), p.1108-1111
Main Authors: Sidorov, N.S., Palnichenko, A.V., Avdonin, V.V., Shakhrai, D.V., Rybchenko, O.G., Khasanov, S.S., Sakharov, M.K.
Format: Article
Language:English
Subjects:
A. High- [formula omitted] superconductors
A. Superconductors
C. Crystal structure and symmetry
Calcium
Calcium phosphate
Diffraction
Instability
Solid state
Stability
Superconductivity
X-rays
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Shock-wave pressure treatment up to 65 GPa has been applied to samples representing powdered mixtures of calcium and calcium phosphate in 1:1 volume ratio. Magnetometric measurements have revealed superconductivity of the samples at 50 K. By means of X-ray powder diffraction and magnetometric measurements, it has been found that superconductivity observed in the samples corresponds to instability at ambient pressure and room temperature of the phase/s formed in the samples during their shock-wave pressure treatment.
ISSN:0038-1098
1879-2766
DOI:10.1016/j.ssc.2010.03.028