Pressure-induced superconductivity in single crystal CaFe2As2
arXiv:0807.0800 · doi:10.1088/0953-8984/20/32/322204
Abstract
We report pressure-induced superconductivity in a single crystal of CaFe2As2. At atmospheric pressure, this material is antiferromagnetic below 170 K but under an applied pressure of 0.69 GPa becomes superconducting, with a transition temperature Tc exceeding 10 K. The rate of Tc suppression with applied magnetic field is -0.7 K/T, giving an extrapolated zero-temperature upper critical field of 10-14T.
Accepted to J. Phys.: Condens. Matter (7 pages, 2 figures)