Departmental Papers (MSE)

Document Type

Journal Article

Date of this Version

9-2010

Abstract

Data is presented for a complex structural and compositional modulation in the perovksite (NaNd)(MgW)O6. This modulation creates a large 14ap X 14ap X 2ap supercell (ap ≈ 3.9 Å is the lattice parameter of the cubic perovskite aristotype) containing ordered regions with doubled (110) d-spacings in the a-b plane separated by two-dimensional periodic antiphase boundaries and accompanied by a nanocheckerboard pattern. Faint periodic modulations in Z-contrast images suggest an associated periodic variation in composition. The presence of a sodium rich impurity implies the composition of the stable perovskite is nonstoichiometic.

Comments

Suggested Citation:
Licurse, M.W. and P.K. Davies. (2010). Nanocheckerboard modulations in (NaNd)(MgW)O6. Applied Physics Letters. 97, 123101.

Copyright 2010 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

The following article appeared in Applied Physics Letters and may be found at http://dx.doi.org/10.1063/1.3490637.

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Date Posted: 14 October 2010

This document has been peer reviewed.