Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Diffraction theory of nanotwin superlattices with low symmetry phase

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
 [1]
  1. Department of Materials Science and Engineering, Virginia Tech, Blacksburg, Virginia 24061 (United States)

A nanotwin diffraction theory is developed. It predicts an adaptive diffraction phenomenon, where the Bragg reflection peaks are determined by coherent superposition of scattered waves from individual twin-related nanocrystals and adaptively shift along the twin peak splitting vectors in response to a change in the twin variant volume fraction. Application of this theory to tetragonal phase explains the intrinsic lattice parameter relationships of monoclinic M{sub C} phase recently discovered in ferroelectric Pb[(Mg{sub 1/3}Nb{sub 2/3}){sub 1-x}Ti{sub x}]O{sub 3} and Pb[(Zn{sub 1/3}Nb{sub 2/3}){sub 1-x}Ti{sub x}]O{sub 3}.

OSTI ID:
20853619
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 10 Vol. 74; ISSN 1098-0121
Country of Publication:
United States
Language:
English