We report on the coexistence of magnetic and superconducting states in CeFeAsO1−xFx for x=0.06(2), characterized by transition temperatures Tm=30 K and Tc=18 K, 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 CeFeAsO1−xFx phase diagram, by ruling out the presence of a quantum critical point which was suggested by earlier studies.

Sanna, S., De Renzi, R., Shiroka, T., Lamura, G., Prando, G., Carretta, P., et al. (2010). Nanoscopic coexistence of magnetic and superconducting states within the FeAs layers of CeFeAsO1-xFx. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 82, 0605081-0605084 [10.1103/PhysRevB.82.060508].

Nanoscopic coexistence of magnetic and superconducting states within the FeAs layers of CeFeAsO1-xFx

SANNA, SAMUELE;
2010

Abstract

We report on the coexistence of magnetic and superconducting states in CeFeAsO1−xFx for x=0.06(2), characterized by transition temperatures Tm=30 K and Tc=18 K, 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 CeFeAsO1−xFx phase diagram, by ruling out the presence of a quantum critical point which was suggested by earlier studies.
2010
Sanna, S., De Renzi, R., Shiroka, T., Lamura, G., Prando, G., Carretta, P., et al. (2010). Nanoscopic coexistence of magnetic and superconducting states within the FeAs layers of CeFeAsO1-xFx. PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS, 82, 0605081-0605084 [10.1103/PhysRevB.82.060508].
Sanna, Samuele; De Renzi, R.; Shiroka, T.; Lamura, G.; Prando, G.; Carretta, P.; Putti, M.; Martinelli, A.; Cimberle, M. R.; Tropeano, M.; Palenzona, ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/549461
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