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Ferroelectric behavior arising from polar topologies in epitaxially strained Sr...
Rodrigues, Tiago; Silva, José Pedro Basto; Figueiras, Fábio; Soares, M. R.; Vilarinho, R.; Moreira, J. Agostinho; Çaha, Ihsan; Deepak, Francis LeonardIn this work, we show that epitaxially strained SrTiO3-δ thin films, grown by ion-beam sputtering onto (001)Nb: SrTiO3 substrates, exhibit a ferroelectric behavior. At the atomic-scale, through high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) images, it was possible to identify the presence of polar nanoregions with non-trivial polar topological structures in the SrTiO3-δ fil...
Data: 2024
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Origem: RepositóriUM - Universidade do Minho