Atomically resolved scanning tunneling microscopy on perovskite manganite single crystals

Rößler, Sahana; Padmanabhan, B.; Elizabeth, Suja; Bhat, H. L.; Steglich, F.; Wirth, S.
May 2010
Applied Physics Letters;5/17/2010, Vol. 96 Issue 20, p202512
Academic Journal
Atomically resolved scanning tunneling microscopy was conducted on cleaved single crystals of the cubic perovskite Pr0.68Pb0.32MnO3. Several different surface configurations could be resolved including a frequent square arrangement with atomic distances in excellent agreement to the bulk lattice constant of the cubic structure. We also observed stripe formation and a surface reconstruction. The latter is likely related to a polar rare earth-oxygen terminated surface.


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