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Nanoscopic coexistence of magnetism and superconductivity in YBa2Cu3O6+x detected by MuSR

S. Sanna·G. Allodi·G. Concas·A. H. Hillier·R. De Renzi
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Abstract

We performed zero and transverse field MuSR experiments on a large number of YBa2Cu3O6+x samples. We detect coexistence of antiferro-type (AF) short range magnetism with superconductivity below T_f~10 K in compositions 0.37<x<0.39. Most muons experience local AF fields, even when SQUID detects a full SC 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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S. Sanna, G. Allodi, G. Concas, A. H. Hillier, R. De Renzi. 2004-09-24. Nanoscopic coexistence of magnetism and superconductivity in YBa2Cu3O6+x detected by MuSR. https://doi.org/10.1103/physrevlett.93.207001

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