Diffraction theory of nanotwin superlattices with low symmetry phase
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- 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
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BRAGG REFLECTION
FERROELECTRIC MATERIALS
LATTICE PARAMETERS
LEAD COMPOUNDS
MAGNESIUM COMPOUNDS
MONOCLINIC LATTICES
NANOSTRUCTURES
NEUTRON DIFFRACTION
NIOBATES
SUPERLATTICES
SYMMETRY
TITANATES
TWINNING
VECTORS
X-RAY DIFFRACTION
ZINC COMPOUNDS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BRAGG REFLECTION
FERROELECTRIC MATERIALS
LATTICE PARAMETERS
LEAD COMPOUNDS
MAGNESIUM COMPOUNDS
MONOCLINIC LATTICES
NANOSTRUCTURES
NEUTRON DIFFRACTION
NIOBATES
SUPERLATTICES
SYMMETRY
TITANATES
TWINNING
VECTORS
X-RAY DIFFRACTION
ZINC COMPOUNDS