Pair breaking by spin-disorder scattering at the antiferromagnetic transition of the Dy3+ sublattice of DyBa2Cu3O7-δ films

K. M. Beauchamp, G. C. Spalding, W. H. Huber, Allen M Goldman

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

A peak in the temperature dependence of the resistance of ultrathin, granular DyBa2Cu3O7-δ films has been found near the Néel temperature TN of the Dy3+ sublattice which orders as a 2D Ising antiferromagnet. The shift of the position of the peak to lower temperatures with increasing magnetic field is consistent with it being a signature of TN. These observations are attributed to the suppression of intergranular Josephson coupling by pair breaking, resulting from enhanced intragranular spin-disorder scattering of quasiparticles near the transition.

Original languageEnglish (US)
Pages (from-to)2752-2755
Number of pages4
JournalPhysical Review Letters
Volume73
Issue number20
DOIs
StatePublished - Jan 1 1994

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