title: Competition of charge-density waves and superconductivity in sulfur.
abstract: A one-dimensional charge-density wave (CDW) instability is shown to be responsible for the formation of the incommensurate modulation of the atomic lattice in the high-pressure phase of sulfur. The coexistence of, and competition between, the CDW and the superconducting state leads to the previously observed increase of T{c} up to 17 K, which we attribute to the suppression of the CDW instability, the same phenomenology found in doped layered dichalcogenides.
authors.affiliation: SUPA, School of Physics and Centre for Science at Extreme Conditions, The University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom.
authors.forename: O
authors.initials: O
authors.lastname: Degtyareva
authors.forename: M V
authors.initials: MV
authors.lastname: Magnitskaya
authors.forename: J
authors.initials: J
authors.lastname: Kohanoff
authors.forename: G
authors.initials: G
authors.lastname: Profeta
authors.forename: S
authors.initials: S
authors.lastname: Scandolo
authors.forename: M
authors.initials: M
authors.lastname: Hanfland
authors.forename: M I
authors.initials: MI
authors.lastname: McMahon
authors.forename: E
authors.initials: E
authors.lastname: Gregoryanz