Epitaxial checkerboard arrangement of nanorods in ZnMnGaO4 films studied by x-ray diffraction

Details Epitaxial checkerboard arrangement of nanorods in ZnMnGaO4 films studied by x-ray diffraction Epitaxial checkerboard arrangement of nanorods in ZnMnGaO4 films studied by x-ray diffraction

2008-04-11

arxiv.org/abs/0804.1973v1

Physics

Condensed Matter

Materials Science

Scientific paper

10.1103/PhysRevB.78.165424

The intriguing nano-structural properties of a ZnMnGaO4 film epitaxially grown on MgO (001) substrate have been investigated using synchrotron radiation-based x-ray diffraction. The ZnMnGaO4 film consisted of a self-assembled checkerboard (CB) structure with perfectly aligned and regularly spaced vertical nanorods. The lattice parameters of the orthorhombic and rotated tetragonal phases of the CB structure were analyzed using H-K, H-L, and K-L cross sections of the reciprocal space maps measured around various symmetric and asymmetric reflections of the spinel structure. We demonstrate that the symmetry of atomic displacements at the phases boundaries provides the means for coherent coexistence of two domains types within the volume of the film.

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