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http://hdl.handle.net/2445/29323| Title: | Cationic Diffusion in La2/3Ca1/3MnO3 Thin Films Grown on LaAlO3 (001) Substrates. |
| Author: | Estradé Albiol, Sònia Arbiol i Cobos, Jordi Peiró Martínez, Francisca Abad, Ll. Laukhin, Vladimir Balcells i Argemí, Lluís Martínez Perea, Benjamin |
| Keywords: | Pel·lícules fines Cations Propietats magnètiques Thin films Cations Magnetic properties |
| Issue Date: | 2007 |
| Publisher: | American Institute of Physics |
| Abstract: | Microstructural features of La2/3Ca1/3MnO3 layers of various thicknesses grown on top of 001 LaAlO3 substrates are studied by using transmission electron microscopy and electron energy loss spectroscopy. Films are of high microstructural quality but exhibit some structural relaxation and mosaicity both when increasing thickness or after annealing processes. The existence of a cationic segregation process of La atoms toward free surface has been detected, as well as a Mn oxidation state variation through layer thickness. La diffusion would lead to a Mn valence change and, in turn, to reduced magnetization. |
| Note: | Reproducció del document publicat a: http://dx.doi.org/10.1063/1.2799740 |
| It is part of: | Applied Physics Letters, 2007, vol. 91, p. 252503-1-252503-3 |
| URI: | http://hdl.handle.net/2445/29323 |
| Related resource: | http://dx.doi.org/10.1063/1.2799740 |
| ISSN: | 0003-6951 |
| Appears in Collections: | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| 554888.pdf | 336.52 kB | Adobe PDF | View/Open |
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