Epitaxial strain and thickness dependent structural, electrical and magnetic properties of La0.67Sr0.33MnO3films

Autor: Julio Camarero, Fernando Ajejas, Paolo Perna, Stéphane Flament, Sandeep-Kumar Chaluvadi, Laurence Méchin, S Lebargy, Pasquale Orgiani, Albert Minj
Přispěvatelé: Equipe Electronique - Laboratoire GREYC - UMR6072, Groupe de Recherche en Informatique, Image et Instrumentation de Caen (GREYC), Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Normandie Université (NU)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU), Universidad Autonoma de Madrid (UAM), CNR Istituto Officina dei Materiali (IOM), Consiglio Nazionale delle Ricerche [Roma] (CNR), Departamento de Fisica de la Materia Condensada [Madrid] (FMC), Facultad de Ciencas [Madrid], Universidad Autonoma de Madrid (UAM)-Universidad Autonoma de Madrid (UAM), Instituto IMDEA Nanociencia [Madrid], Instituto Imdea Nanociencia, UAM. Departamento de Física de la Materia Condensada
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Journal of Physics D: Applied Physics
Journal of Physics D: Applied Physics, IOP Publishing, 2020, 53, pp.375005. ⟨10.1088/1361-6463/ab8e7b⟩
Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia
instname
Biblos-e Archivo. Repositorio Institucional de la UAM
Journal of physics. D, Applied physics
53 (2020): 375005-1–375005-7. doi:10.1088/1361-6463/ab8e7b
info:cnr-pdr/source/autori:Chaluvadi, Sandeep Kumar; Ajejas, Fernando; Orgiani, Pasquale; Lebargy, Sylvain; Minj, Albert; Flament, Stephane; Camarero, Julio; Perna, Paolo; Mechin, Laurence/titolo:Epitaxial strain and thickness dependent structural, electrical and magnetic properties of La(0.67)Sr(0.33)MnO(3)films/doi:10.1088%2F1361-6463%2Fab8e7b/rivista:Journal of physics. D, Applied physics (Print)/anno:2020/pagina_da:375005-1/pagina_a:375005-7/intervallo_pagine:375005-1–375005-7/volume:53
ISSN: 0022-3727
1361-6463
DOI: 10.1088/1361-6463/ab8e7b⟩
Popis: International audience; The crystal structural quality and the strain induced by the substrate strictly impose the magnetic and transport properties of La0.67Sr0.33MnO3 (LSMO) films. In particular, the magnetic anisotropy (MA) of epitaxial LSMO can be finely tuned by varying its thickness and by choosing single crystal substrates with suitable lattice mismatch with the film. Here, we have deposited LSMO films with thicknesses in the 12-50 nm range by pulsed laser deposition on different single crystal substrates inducing either compressive or tensile in-plane strain on the manganites. The epitaxial quality of films was quantified by ω-scans around (002) peak with full-width half-maximum (FWHM) values as low as 0.08° for films on the nearly matched NGO (110) substrate to 1.4° films on high mismatched MgO (001) substrate. As the epitaxial strain in thin-film increases, a significant reduction in metal-insulation transition (MIT) temperature (Tp) was observed. The magnetic properties of the films probed by Kerr magnetometry show that the symmetry of the room temperature MA varies significantly as a function of both strain and thickness. Specifically, we observed pure uniaxial MA on NGO (110) and pure biaxial MA on STO buffered MgO (001), whereas a spin reorientation from uniaxial in-plane to out-of-plane on LSAT (001) and uniaxial to nearly isotropic in-plane on STO (001) substrate as the film thickness is increased. We provide an efficient tool to tune the MA according to the specific spintronic application targeted.
Databáze: OpenAIRE