Published November 1, 2004 | Version v1
Journal article Metadata-only

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

Creators

  • 1. National Research Council, Chalk River, Ontario, K0J 1J0 (Canada)
  • 2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201800 (China)
  • 3. Department of Materials Science and Engineering, Virginia Tech., Blacksburg, Virginia 24061 (United States)
  • 4. Department of Physics, University of Toronto, 60 St. George, Ontario, M5S 1A7 (Canada)
  • 5. Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)

Description

Spatially resolved neutron diffraction as a function of crystal depth in Pb(Mg1/3Nb2/3)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

Additional details

Identifiers

DOI
10.1103/PhysRevB.70.172204;
arXiv
arXiv:cond-mat/0407609v1;

Publishing Information

Journal Title
Physical Review. B, Condensed Matter and Materials Physics
Journal Volume
70
Journal Issue
17
Journal Page Range
p. 172204-172204.4
ISSN
1098-0121

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
36102845
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
Descriptors DEI
BRAGG CURVE; COMPARATIVE EVALUATIONS; CRYSTAL DEFECTS; DEPTH; FERROELECTRIC MATERIALS; LATTICE PARAMETERS; LAYERS; LEAD COMPOUNDS; MONOCRYSTALS; NEUTRON DIFFRACTION; NEUTRONS; POWDERS; SURFACES; X RADIATION; X-RAY DIFFRACTION
Descriptors DEC
BARYONS; COHERENT SCATTERING; CRYSTAL STRUCTURE; CRYSTALS; DIAGRAMS; DIELECTRIC MATERIALS; DIFFRACTION; DIMENSIONS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; EVALUATION; FERMIONS; HADRONS; INFORMATION; IONIZING RADIATIONS; MATERIALS; NUCLEONS; RADIATIONS; SCATTERING

Optional Information

Notes
(c) 2004 The American Physical Society