title: Coexistence of superconductivity and antiferromagnetism probed by simultaneous nuclear magnetic resonance and electrical transport in (TMTSF)2PF6 system.
abstract: We report simultaneous NMR and electrical transport experiments in the pressure range near the boundary of the antiferromagnetic spin density wave (SDW) insulator and the metallic/superconducting (SC) phase in (TMTSF)2PF6. Measurements indicate a tricritical point separating a line of second-order SDW/metal transitions from a line of first-order SDW/metal(SC) transitions with coexistence of macroscopic regions of SDW and metal(SC) order, with little mutual interaction but strong hysteretic effects. NMR results quantify the fraction of each phase.
authors.affiliation: Department of Physics, Princeton University, New Jersey 08544, USA. ijlee@chonbuk.ac.kr
authors.forename: I J
authors.initials: IJ
authors.lastname: Lee
authors.forename: S E
authors.initials: SE
authors.lastname: Brown
authors.forename: W
authors.initials: W
authors.lastname: Yu
authors.forename: M J
authors.initials: MJ
authors.lastname: Naughton
authors.forename: P M
authors.initials: PM
authors.lastname: Chaikin