Competition of Charge-Density Waves and Superconductivity in Sulfur

O. Degtyareva, M. V. Magnitskaya, J. Kohanoff, G. Profeta, S. Scandolo, M. Hanfland, M. I. McMahon, and E. Gregoryanz
Phys. Rev. Lett. 99, 155505 – Published 12 October 2007
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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 Tc up to 17 K, which we attribute to the suppression of the CDW instability, the same phenomenology found in doped layered dichalcogenides.

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  • Received 12 January 2007

DOI:https://doi.org/10.1103/PhysRevLett.99.155505

©2007 American Physical Society

Authors & Affiliations

O. Degtyareva1, M. V. Magnitskaya2, J. Kohanoff3, G. Profeta4, S. Scandolo5, M. Hanfland6, M. I. McMahon1, and E. Gregoryanz1

  • 1SUPA, School of Physics and Centre for Science at Extreme Conditions, The University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
  • 2Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk, Moscow Region 142190, Russia
  • 3Atomistic Simulation Centre, Queen’s University Belfast, Belfast BT7 1NN, Northern Ireland, United Kingdom
  • 4CNISM-Dipartimento di Fisica, Università degli Studi di L’Aquila, I-67010 Coppito (L’Aquila) Italy
  • 5The Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy, and INFM/CNR “Democritos” National Simulation Center, Trieste, Italy
  • 6ESRF, Boîte Postale 220, 38043 Grenoble, France

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Issue

Vol. 99, Iss. 15 — 12 October 2007

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