Structural, electrical and magnetic properties of epitaxial La 0.7 Sr 0.3 CoO 3 thin films grown on SrTiO 3 and LaAlO 3 substrates
La 0.7 Sr 0.3 CoO 3 (LSCO) thin films have been epitaxially grown on SrTiO 3 (STO) and LaAlO 3 (LAO) substrates by metal organic deposition. The effects of the strain - induced by clamping - on the structural and physical properties of the films were studied. For that, we have performed resistivity...
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| Otros Autores: | , , , , , , |
| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier B.V.
2014
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
| LEADER | 08050caa a22009857a 4500 | ||
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| 001 | PAPER-14188 | ||
| 003 | AR-BaUEN | ||
| 005 | 20241028090641.0 | ||
| 008 | 190411s2014 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-84901239952 | |
| 030 | |a ASUSE | ||
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Othmen, Z. | |
| 245 | 1 | 0 | |a Structural, electrical and magnetic properties of epitaxial La 0.7 Sr 0.3 CoO 3 thin films grown on SrTiO 3 and LaAlO 3 substrates |
| 260 | |b Elsevier B.V. |c 2014 | ||
| 270 | 1 | 0 | |m Schulman, A.; Departamento de Física, FCEyN, IFIBA, Pabellón 1, 1428 Buenos Aires, Argentina; email: schulman@df.uba.ar |
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| 506 | |2 openaire |e Política editorial | ||
| 520 | 3 | |a La 0.7 Sr 0.3 CoO 3 (LSCO) thin films have been epitaxially grown on SrTiO 3 (STO) and LaAlO 3 (LAO) substrates by metal organic deposition. The effects of the strain - induced by clamping - on the structural and physical properties of the films were studied. For that, we have performed resistivity and magnetization studies as a function of temperature and magnetic field as well as X-ray diffraction and Raman spectroscopy measurements. Our X-ray results are similar for both substrates showing that the 20 nm films are fully strained while thicker films have two components corresponding to a fully strained and a relaxed component. Relaxation induced by increasing film thickness (up to 100 nm) results in a systematic evolution of the out of plane crystallographic cell parameter toward the bulk LSCO values. Raman spectra of the thinner films exhibit specific modes which are not present in the bulk LSCO spectra. These modes disappear for thicker films which are totally relaxed. All the samples show similar magnetic behavior independently of the thickness and the substrate with a Curie temperature (T C ) around 210 K. Relative changes in resistivity due to the film thickness are larger than 3 orders of magnitude with a relatively small influence of the type of strain induced by the substrate (compressive or tensile). Moreover whereas the relaxed film (100 nm thick) shows similar transport properties as the bulk sample, the fully strained film (20 nm thick) shows a 3D variable range hopping conduction with a higher degree of localization which is a direct result of the strain state. © 2014 Elsevier B.V. All rights reserved. |l eng | |
| 536 | |a Detalles de la financiación: Universidad de Buenos Aires | ||
| 536 | |a Detalles de la financiación: European Commission | ||
| 536 | |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas | ||
| 536 | |a Detalles de la financiación: AS acknowledges scholarships from the European Commission (Arcoiris Erasmus Mundus), the University of Buenos Aires and from CONICET (Argentina). We are grateful with O. Chaix-Pluchery (Raman spectroscopy) and with F. Gay (resistivity measurements) for their experimental assistance. | ||
| 593 | |a Unité Nanomatériaux et Photonique, Faculté des Sciences de Tunis, 2092 El Manar Tunis, Tunisia | ||
| 593 | |a Laboratoire des Matériaux et du Génie Physique, UMR 5628 CNRS-UDG-Grenoble INP, Minatec, 3, Parvis Louis Néel, CS 50257, 38016 Grenoble Cedex 1, France | ||
| 593 | |a Departamento de Física, FCEyN, IFIBA, Pabellón 1, 1428 Buenos Aires, Argentina | ||
| 593 | |a Physics Department, United Arab Emirates University, P.O. Box 17551, Al-Ain, United Arab Emirates | ||
| 593 | |a National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki 305-8565, Japan | ||
| 690 | 1 | 0 | |a COBALTITE THIN FILMS |
| 690 | 1 | 0 | |a CONDUCTION MECHANISM |
| 690 | 1 | 0 | |a STRAIN ENGINEERING |
| 690 | 1 | 0 | |a ALUMINUM COMPOUNDS |
| 690 | 1 | 0 | |a EPITAXIAL GROWTH |
| 690 | 1 | 0 | |a FILM THICKNESS |
| 690 | 1 | 0 | |a LANTHANUM COMPOUNDS |
| 690 | 1 | 0 | |a MAGNETISM |
| 690 | 1 | 0 | |a ORGANOMETALLICS |
| 690 | 1 | 0 | |a STRONTIUM TITANATES |
| 690 | 1 | 0 | |a SUBSTRATES |
| 690 | 1 | 0 | |a TITANIUM COMPOUNDS |
| 690 | 1 | 0 | |a X RAY DIFFRACTION |
| 690 | 1 | 0 | |a CONDUCTION MECHANISM |
| 690 | 1 | 0 | |a DEGREE OF LOCALIZATION |
| 690 | 1 | 0 | |a ELECTRICAL AND MAGNETIC PROPERTY |
| 690 | 1 | 0 | |a METAL ORGANIC DEPOSITION |
| 690 | 1 | 0 | |a RAMAN SPECTROSCOPY MEASUREMENTS |
| 690 | 1 | 0 | |a STRAIN ENGINEERING |
| 690 | 1 | 0 | |a STRUCTURAL AND PHYSICAL PROPERTIES |
| 690 | 1 | 0 | |a VARIABLE-RANGE HOPPING CONDUCTION |
| 690 | 1 | 0 | |a THIN FILMS |
| 700 | 1 | |a Schulman, A. | |
| 700 | 1 | |a Daoudi, K. | |
| 700 | 1 | |a Boudard, Michel | |
| 700 | 1 | |a Acha, C. | |
| 700 | 1 | |a Roussel, H. | |
| 700 | 1 | |a Oueslati, M. | |
| 700 | 1 | |a Tsuchiya, T. | |
| 773 | 0 | |d Elsevier B.V., 2014 |g v. 306 |h pp. 60-65 |p Appl Surf Sci |x 01694332 |w (AR-BaUEN)CENRE-76 |t Applied Surface Science | |
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