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The so-called Biphase termination on α-Fe 2 O 3 has been widely accepted to be a structure with a ∼40Å unit supercell composed of coexisting islands of Fe 1−x O and α-Fe 2 O 3 . Based on thermodynamic arguments and experimental evidence, including transmission electron diffraction, imaging, magnetic and spectroscopic information, it is found that the previously...
The formation of surface reconstructions on the (111) surface of SrTiO 3 following Ar + ion bombardment and annealing in oxygen-rich (0.2⩽pO 2 ⩽1.0) environments is systematically investigated using transmission electron microscopy imaging and diffraction. A series of air stable and highly reproducible reconstructions are observed whose periodicity depends on the combination...
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