Abstract
We report on the coexistence of magnetic and superconducting states in for , characterized by transition temperatures and , respectively. Zero-field and transverse-field muon-spin-relaxation measurements show that below 10 K the two phases coexist within a nanoscopic scale over a large volume fraction. This result clarifies the nature of the magnetic-to-superconducting transition in the phase diagram, by ruling out the presence of a quantum critical point which was suggested by earlier studies.
- Received 1 July 2010
DOI:https://doi.org/10.1103/PhysRevB.82.060508
©2010 American Physical Society