title: NMR investigation of superconductivity and Antiferromagnetism in CaFe2As2 under pressure.
abstract: We report 75As NMR measurements in CaFe2As2, made under applied pressures up to 0.83 GPa produced by a standard clamp pressure cell. Our data reveal phase segregation of paramagnetic and antiferromagnetic (AFM) phases over a range of pressures, with the AFM phase more than 90% dominant at low temperatures. In situ rf susceptibility measurements indicate the presence of superconductivity. 75As spin-lattice relaxation experiments indicate that the 75As nuclei sample the superconductivity while in the magnetically ordered environment.
authors: Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
authors: S-H
authors: SH
authors: Baek
authors: H
authors: H
authors: Lee
authors: S E
authors: SE
authors: Brown
authors: N J
authors: NJ
authors: Curro
authors: E D
authors: ED
authors: Bauer
authors: F
authors: F
authors: Ronning
authors: T
authors: T
authors: Park
authors: J D
authors: JD
authors: Thompson