Antiferromagnetism and superconductivity in YBa2Cu3Oxstudied by μSR

Authors :: Luke, G.M.
Kiefl, R.F.
Brewer, J.H.
Riseman, T.M.
Williams, D.Ll.
Kempton, J.R.
Kreitzman, S.R.
Ansaldo, E.J.
Kaplan, N.
Uemura, Y.J.
Hardy, W.N.
Carolan, J.F.
Hayden, M.E.
Yang, B.X.
Source :: Physica C: Superconductivity and its Applications; January 1988, Vol. 153 Issue: 1 p759-760, 2p
Publication Year :: 1988
Abstract: We have used the technique of muon spin relaxation to study the competition between antiferromagnetism (AFM) and superconductivity (SC) in oxygen deficient YBa2Cu3Oxfor 6.0 < x < 6.5. Average Néel temperatures range from 450K for x= 6.0 down to 2.5K for x = 6.40. Samples with x near 6.4 were both SC and AFM. In the x = 6.1 sample, where there is a narrow distribution of TN's, we have observed the critical slowing down of the Cu spins at the average TN.