Abstract
We report pressure-induced superconductivity in a single crystal ofCaFe2As2. At atmospheric pressure, this material is antiferromagnetic below 170 K but under anapplied pressure of 0.69 GPa becomes superconducting, with a transition temperatureTc exceeding 10 K.The rate of Tc suppression with applied magnetic field is−0.7 K T−1, giving an extrapolated zero-temperature upper critical field of 10–14 T.
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