Academic Journal
Surface polarization profile of ferroelectric thin films probed by X-ray standing waves and photoelectron spectroscopy
| العنوان: | Surface polarization profile of ferroelectric thin films probed by X-ray standing waves and photoelectron spectroscopy |
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| المؤلفون: | Le Phuong Hoang, Irena Spasojevic, Tien-Lin Lee, David Pesquera, Kai Rossnagel, Jörg Zegenhagen, Gustau Catalan, Ivan A. Vartanyants, Andreas Scherz, Giuseppe Mercurio |
| المصدر: | Scientific Reports, Vol 14, Iss 1, Pp 1-19 (2024) |
| بيانات النشر: | Nature Portfolio, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Medicine LCC:Science |
| مصطلحات موضوعية: | Ferroelectric polarization, X-ray standing wave, X-ray photoelectron spectroscopy, Medicine, Science |
| الوصف: | Abstract Understanding the mechanisms underlying a stable polarization at the surface of ferroelectric thin films is of particular importance both from a fundamental point of view and to achieve control of the surface polarization itself. In this study, we demonstrate that the X-ray standing wave technique allows the surface polarization profile of a ferroelectric thin film, as opposed to the average film polarity, to be probed directly. The X-ray standing wave technique provides the average Ti and Ba atomic positions, along the out-of-plane direction, near the surface of three differently strained $$\mathrm {BaTiO_3}$$ thin films. This technique gives direct access to the local ferroelectric polarization at and below the surface. By employing X-ray photoelectron spectroscopy, a detailed overview of the oxygen-containing species adsorbed on the surface is obtained. The different amplitude and orientation of the local ferroelectric polarizations are associated with surface charges attributed to different type, amount and spatial distribution of the oxygen-containing adsorbates. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2045-2322 |
| Relation: | https://doaj.org/toc/2045-2322 |
| DOI: | 10.1038/s41598-024-72805-1 |
| URL الوصول: | https://doaj.org/article/7994dc44847c4683a2727cf9f0447eca |
| رقم الانضمام: | edsdoj.7994dc44847c4683a2727cf9f0447eca |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20452322 |
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| DOI: | 10.1038/s41598-024-72805-1 |