Nanoscopic Coexistence of Magnetism and Superconductivity in YBa2Cu3O6+x Detected by Muon Spin Rotation

S. Sanna, G. Allodi, G. Concas, A. D. Hillier, and R. De Renzi
Phys. Rev. Lett. 93, 207001 – Published 8 November 2004

Abstract

We performed zero and transverse field muon spin rotation experiments on a large number of YBa2Cu3O6+x samples. We detect the coexistence of antiferromagnetic (AF) short range magnetism with superconductivity below Tf10   K in compositions 0.37x0.39. Most muons experience local AF fields, even when a SQUID detects a full superconducting volume fraction, which points to a local minimal interference organization of short AF stripes embedded in the superconductor. A detailed phase diagram is produced and the consequences of the minimal interference are discussed.

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  • Received 25 March 2004

DOI:https://doi.org/10.1103/PhysRevLett.93.207001

©2004 American Physical Society

Authors & Affiliations

S. Sanna1, G. Allodi2, G. Concas1, A. D. Hillier3, and R. De Renzi2

  • 1Dipartimento di Fisica e Unità INFM di Cagliari, I 09042 Monserrato (Ca), Italy
  • 2Dipartimento di Fisica e Unità INFM di Parma, I 43100 Parma, Italy
  • 3ISIS Muon Facility, Rutherford Appleton Laboratory, Chilton, OX11 0QX, United Kingdom

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Issue

Vol. 93, Iss. 20 — 12 November 2004

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