Direct observation of the near-surface layer in Pb(Mg₁/₃ Nb₂/₃ )O₃ using neutron diffraction

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DOIResolve DOI: http://doi.org/10.1103/PhysRevB.70.172204
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TypeArticle
Journal titlePhysical Review B
Volume70
Issue17
Pages172204
AbstractSpatially resolved neutron diffraction as a function of crystal depth in Pb(Mg₁/₃ Nb₂/₃ )O₃ reveals the presence of a distinct near-surface region where a strong distortion in the lattice exists. A dramatic change in both the lattice constant and the Bragg peak intensity as a function of crystal depth is observed to occur in this region over a length scale ~100 μm. This confirms a previous assertion, based on a comparison between high-energy x rays and neutrons, that such a near surface region exists in the relaxors. Consequences to both single crystal and powder diffraction measurements and previous bulk neutron diffraction measurements on large single crystals are discussed.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences
Peer reviewedNo
NPARC number12337961
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Record identifier24284be1-cfc7-4cfb-afa5-8cf30f774384
Record created2009-09-10
Record modified2016-05-09
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