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https://hdl.handle.net/2445/128199| Title: | Evidence of a minoritary monoclinic LaNiO<sub>2.5</sub> phase in lanthanum nickelate thin films |
| Author: | López Conesa, Lluís Rebled, J. M. (José Manuel) Pesquera, David Dix, Nico Sánchez Barrera, Florencio Herranz Casabona, Gervasi Fontcuberta, Josep Magén, César Casanove, Marie Jose Estradé Albiol, Sònia Peiró Martínez, Francisca |
| Keywords: | Ciència dels materials Cristal·lografia Pel·lícules fines Òxids metàl·lics Estructura electrònica Materials science Crystallography Thin films Metallic oxides Electronic structure |
| Issue Date: | 7-Mar-2017 |
| Publisher: | Royal Society of Chemistry |
| Abstract: | LaNiO3 (LNO) thin films of 14 nm and 35 nm thicknesses grown epitaxially on LaAlO3 (LAO) and (LaAlO3)0.3(Sr2TaAlO6)0.7 (LSAT) substrates are studied using High Resolution Transmission Electron Microscopy (HRTEM) and High Angle Annular Dark Field (HAADF) imaging. The strain state of the films is studied using Geometric Phase Analysis (GPA). Results show the successful in-plane adaptation of the films to the substrates, both in the compressive (LAO) and tensile (LSAT) cases. Through the systematic analysis of HRTEM superstructure contrast modulation along different crystal orientations, localized regions of the monoclinic LaNiO2.5 phase are detected in the 35 nm films. |
| Note: | Versió postprint del document publicat a: https://doi.org/10.1039/c7cp00902j |
| It is part of: | Physical Chemistry Chemical Physics, 2017, vol. 19, num. 13, p. 9137-9142 |
| URI: | https://hdl.handle.net/2445/128199 |
| Related resource: | https://doi.org/10.1039/c7cp00902j |
| ISSN: | 1463-9076 |
| Appears in Collections: | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) Articles publicats en revistes (Institut de Nanociència i Nanotecnologia (IN2UB)) |
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| 670895.pdf | 1.59 MB | Adobe PDF | View/Open |
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