Anomalous behavior of spin fluctuations in polycrystalline NdBa2Cu3O7

A. P. Reyes*, M. Abdelrazek, P. L. Kuhns, W. G. Moulton, W. P. Halperin, K. Kishio

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Nuclear spin-lattice relaxation rate 1/T1 at the planar 0(2,3) and bridging 0(4) oxygen sites in NdBa2CU3O7 have been measured as a function of temperature in fields up to 42T. Data is characterized by extremely fast relaxation due to Nd. A well-defined peak is observed, indicative of spin freezing, occurring well below Tc and higher than TN, and whose physical origin is unknown. Extracted T1 data for Cu(2) shows enhanced Cu-Cu correlations in the superconducting state, suggesting a short-ranged order at lower temperatures.

Original languageEnglish (US)
Pages (from-to)3164-3169
Number of pages6
JournalInternational Journal of Modern Physics B
Volume16
Issue number20-22
DOIs
StatePublished - Aug 30 2002

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

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