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Growth and characterization of the electronic structure of oxides multiferroics heterostructures


Multiferroic oxides attracted the scientific community attention due to the interaction between their dielectric and magnetic properties. Macroscopically, this interaction allows to change the magnetic State of a sample applying an external electrical field, or conversely, to control the polarization State using external magnetic fields. These properties have a tremendous potential for applications, including in the field of non-volatile information storage media. On the other hand up to the moment there is no multiferroic material suitable for practical applications and in order to improve their properties one needs to understand the microscopic principies behind the interaction between the dielectric and magnetic degrees of freedom. With this project we start a new research group within the Laboratório Nacional de Luz Sincrotron (Synchrotron National Light Laboratory, LNLS), specialized in the study of multiferroic materials by means of a variety of X-ray spectroscopy techniques. The main goal of this proposal is to establish a research team capable of growing and characterize multiferroic and ferroelectric containing thin films. In view of that, we propose a set of instruments that will allow the full description of the electronic structure of the studied materials. The implementation of the proposed infrastructure will turn the LNLS extremely competitive in the international scenario, not only within the multiferroic community, but also in several other research fields, once that the full system will be available to the LNLS users community in the present machine, and later on the future synchrotron SIRIUS. (AU)

Scientific publications (8)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ANNESE, E.; MORI, T. J. A.; SCHIO, P.; BONFIM, R. P. F.; SALLES, B. RACHE; SERNA, J. D. PENA; CEZAR, J. C. Magnetic properties of La0.67Sr0.33MnO3 epitaxial thin films grown on SrTiO3(001). Journal of Magnetism and Magnetic Materials, v. 507, AUG 1 2020. Web of Science Citations: 0.
ANNESE, EMILIA; MORI, THIAGO J. A.; SCHIO, PEDRO; SALLES, BENJAMIN RACHE; CEZAR, JULIO C. Fe-Phthalocyanine Nanoclusters on La0.67Sr0.33MnO3 Ferromagnetic Substrate for Spintronics Application. ACS APPLIED NANO MATERIALS, v. 3, n. 2, p. 1516-1525, FEB 2020. Web of Science Citations: 0.
BRANDAO, J.; DUGATO, D. A.; PUYDINGER DOS SANTOS, M. V.; CEZAR, J. C. Evolution of Zero-Field Ferrimagnetic Domains and Skyrmions in Exchange-Coupled Pt/CoGd/Pt Confined Nanostructures: Implications for Antiferromagnetic Devices. ACS APPLIED NANO MATERIALS, v. 2, n. 12, p. 7532-7539, DEC 2019. Web of Science Citations: 0.
DUGATO, D. A.; BRANDAO, J.; SEEGER, R. L.; BERON, F.; CEZAR, J. C.; DORNELES, L. S.; MORI, T. J. A. Magnetic domain size tuning in asymmetric Pd/Co/W/Pd multilayers with perpendicular magnetic anisotropy. Applied Physics Letters, v. 115, n. 18 OCT 28 2019. Web of Science Citations: 0.
ESTRADA, FLAVIA R.; DE MORAES, LUCAS G. M.; VITAL, FELIPE L. A.; NEME, MAIRA D.; SCHIO, PEDRO; MORI, THIAGO J. A.; CEZAR, JULIO C. Island growth mode in pulsed laser deposited ferroelectric BaTiO3 thin films: The role of oxygen pressure during deposition. Ferroelectrics, v. 545, n. 1, SI, p. 39-44, JUN 11 2019. Web of Science Citations: 0.
BRANDAO, J.; DUGATO, D. A.; SEEGER, R. L.; DENARDIN, J. C.; MORI, T. J. A.; CEZAR, J. C. Observation of magnetic skyrmions in unpatterned symmetric multilayers at room temperature and zero magnetic field. SCIENTIFIC REPORTS, v. 9, MAR 11 2019. Web of Science Citations: 5.
ANNESE, EMILIA; DOS SANTOS, JOACIR E.; RODRIGUES, GUSTAVO LORENCINI M. P.; ROCHA, ANDRE SILVA; DE MORAES, HORACIO RIBEIRO; CEZAR, JULIO CRIGINSKI. Ultrahigh-vacuum organic molecular-beam deposition system for in situ growth and characterization. JOURNAL OF SYNCHROTRON RADIATION, v. 25, n. 6, p. 1658-1663, NOV 2018. Web of Science Citations: 0.
ANNESE, E.; MORI, T. J. A.; SCHIO, P.; RACHE SALLES, B.; CEZAR, J. C. Influence of the growth parameters on the electronic and magnetic properties of La0.67Sr0.33MnO3 epitaxial thin films. Applied Surface Science, v. 437, p. 281-286, APR 15 2018. Web of Science Citations: 1.

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