Precision measurement of magnetic relaxation in YBa2Cu3O7: Power-law versus logarithmic decay

D. A. Brawner, Nai Phuan Ong, Z. Z. Wang

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Using a sensitive, micrometer-sized, scanning Hall probe, we have made precision measurements of the relaxation of the remanent magnetization in single crystal YBa2Cu3O7. The technique allows us to determine how the relaxation rate varies over the face of the crystal. At all temperatures from 4.2 to 74 K, the relaxation is observed to follow a power-law dependence B(1+t/)-1/, instead of logarithmic behavior. We discuss the origin of, and compare the relaxation behavior with recent calculations of vortex diffusion.

Original languageEnglish (US)
Pages (from-to)1156-1159
Number of pages4
JournalPhysical Review B
Volume47
Issue number2
DOIs
StatePublished - Jan 1 1993

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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