Pretransitional Diffuse Neutron Scattering in Ferroelectric KTa$_{1-x}$Nb$_{x}$O$_{3}$

ORAL

Abstract

Pretransitional diffuse neutron scattering in ferroelectric KTa$_{1-x}$Nb$_{x}$O$_{3}$ occurs at (110), (111), and (130) with no diffuse scattering at (100), and (200). These observations will be discussed using the elastic structure factor and `uniform phase shift' description.

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Authors

  • Grace Yong

    Towson University

  • Ross Erwin

    NIST, NCNR, NIST, NIST Center for Neutron Research

  • Oleksiy Svitelskiy

    University of Alberta

  • Jean Toulouse

    Lehigh University

  • Lynn Boatner

    Oak Ridge National Laboratory

  • Bernard Hennion

    Laboratory Leon Brillouin

  • Stephen Shapiro

    Brookhaven Nat'l Lab, Brookhaven National Laboratory, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA