Antiferromagnetism and superconductivity in oxygen-deficient YBa2Cu3Ox

J. H. Brewer; E. J. Ansaldo; J. F. Carolan; A. C. D. Chaklader; W. N. Hardy; D. R. Harshman; M. E. Hayden; M. Ishikawa; N. Kaplan; R. Keitel; J. Kempton; R. F. Kiefl; W. J. Kossler; S. R. Kreitzman; A. Kulpa; Y. Kuno; G. M. Luke; H. Miyatake; K. Nagamine; Y. Nakazawa; N. Nishida; K. Nishiyama; S. Ohkuma; T. M. Riseman; G. Roehmer; P. Schleger; D. Shimada; C. E. Stronach; T. Takabatake; Y. J. Uemura; Y. Watanabe; D. Ll. Williams; T. Yamazaki; B. Yang

doi:10.1103/PhysRevLett.60.1073

Antiferromagnetism and superconductivity in oxygen-deficient YBa2Cu3Ox

J. H. Brewer, E. J. Ansaldo, J. F. Carolan, A. C. D. Chaklader, W. N. Hardy, D. R. Harshman, M. E. Hayden, M. Ishikawa, N. Kaplan, R. Keitel, J. Kempton, R. F. Kiefl, W. J. Kossler, S. R. Kreitzman, A. Kulpa, Y. Kuno, G. M. Luke, H. Miyatake, K. Nagamine, Y. Nakazawa, N. Nishida, K. Nishiyama, S. Ohkuma, T. M. Riseman, G. Roehmer, P. Schleger, D. Shimada, C. E. Stronach, T. Takabatake, Y. J. Uemura, Y. Watanabe, D. Ll. Williams, T. Yamazaki, B. Yang

DOI 10.1103/PhysRevLett.60.1073 · Physical Review Letters

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Abstract

Positive-muon spin-rotation and -relaxation measurements of the oxygen-deficient perovskite YBa2Cu3Ox have revealed local antiferromagnetic order for 6.0≲x≲6.4 with a Néel temperature TN that decreases rapidly with increasing oxygen content x. For slowly annealed samples with 6.35≲x≲6.5 the superconducting transition temperature Tc increases smoothly with x from 25 K at x=6.348 to 60 K at x=6.507. Two such samples with x=6.348 and x=6.400 appear to ‘‘switch’’ from superconductivity to antiferromagnetic order at lower temperatures.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	25	Pressure not reported	onset
YBa2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	33	Pressure not reported	onset
YBa2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	60	Pressure not reported	onset
YBa2Cu3O Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	90	Pressure not reported	unknown
La1.85Sr0.15CuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown