Ex) Article Title, Author, Keywords
Published online July 14, 2023 https://doi.org/10.1007/s40042-023-00862-2
Copyright © The Korean Physical Society.
Tae Hwa Eom, Sang A. Lee, Jae‑Yeol Hwang
Strong modulation between crystal symmetry and the corresponding RuO6 octahedral configurations were verified by structural model calculations based on the diffraction data of 20 individual half-order peaks. This proves that the compressively strained SrRuO3 thin film has pseudo-orthorhombic (monoclinic, P21/m, #11) structure with the BO6 configuration of a+a–c– at 25 °C and tetragonal (I4/mcm, #140) with the octahedral tilt of a0a0c– above 285 °C. The structural phase transition from pseudo-orthorhombic to the tetragonal structure was determined at around 285 °C and epitaxial strain was persistent during the structural phase transition in the fully strained SrRuO3/SrTiO3 heterostructured thin film.
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