Nanoscopic Coexistence of Magnetism and Superconductivity in YBa2Cu3O6+x Detected by Muon Spin Rotation
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 Tf≲10 K in compositions 0.37≲x≲0.39. 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.
- Publication:
-
Physical Review Letters
- Pub Date:
- November 2004
- DOI:
- 10.1103/PhysRevLett.93.207001
- arXiv:
- arXiv:cond-mat/0403608
- Bibcode:
- 2004PhRvL..93t7001S
- Keywords:
-
- 74.25.Ha;
- 74.62.Dh;
- 74.72.Bk;
- 76.75.+i;
- Magnetic properties;
- Effects of crystal defects doping and substitution;
- Y-based cuprates;
- Muon spin rotation and relaxation;
- Condensed Matter - Superconductivity;
- Condensed Matter - Strongly Correlated Electrons
- E-Print:
- 4 pages, 5 figures