Penetration depth of YBa2Cu3O7 measured by polarised neutron reflectometry

J. M. Reynolds, V. Nunez, A. T. Boothroyd, T. Freltoft, D. G. Bucknall, J. Penfold

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We have applied the technique of polarised neutron reflectometry (PNR) to investigate the magnetic field profile near the surface of YBa2Cu3O7 films at 4.3 K. The samples comprised 700-1400 nm of c-axis oriented, single crystal YBa2Cu3O7 deposited by laser ablation on SrTiO3 substrates. The measurements were carried out on the CRISP reflectometer at the ISIS facility. The PNR technique measures the magnetic induction profile perpendicular to the surface, and so in our case the decay of flux in the c-direction was measured with a field applied parallel to the ab plane. We present preliminary data for the polarised and unpolarised reflectivity

Original languageEnglish
Pages (from-to)163-165
Number of pages3
JournalPhysica B: Condensed Matter
Volume248
Issue number1-4
Publication statusPublished - 15 Jun 1998

Keywords

  • Penetration depth
  • Polarized neutrons
  • Reflectometry
  • YbaCuO

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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