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Abstract To characterize the physical properties of thin films without ambiguity and design interface with new functionalities, it is essential to have detailed knowledge of physical properties and appropriate estimation… Click to show full abstract
Abstract To characterize the physical properties of thin films without ambiguity and design interface with new functionalities, it is essential to have detailed knowledge of physical properties and appropriate estimation of the band profile of perovskite oxide substrates. We have developed and demonstrated a chemical free unified framework to realize single terminated surface of KTaO 3 , (LaAlO 3 ) 0.3 (Sr 2 AlTaO 6 ) 0.7 and SrTiO 3 (001) oriented single crystals. The electronic band line-up of these single crystal substrates, using a combination of optical spectroscopy and Kelvin Probe Force Microscopy, has been constructed. A polar-polar interface of KTaO 3 and La B O 3 ( B -Transition metal ion) before and after the possible surface/electronic reconstruction has also been schematically presented.
Journal Title: Applied Surface Science
Year Published: 2018
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