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.
Nanoscopic Coexistence of Magnetism and Superconductivity in YBa2Cu3O6 + x Detected by Muon Spin Rotation
SANNA, SAMUELE;
2004-01-01
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.File in questo prodotto:
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