Zobrazeno 1 - 10
of 309
pro vyhledávání: '"Leite E. R."'
Publikováno v:
Cerâmica, Vol 49, Iss 309, Pp 36-39 (2003)
Realizou-se um estudo teórico-experimental sobre as estruturas cristalina e amorfa de niobato de lítio, para verificar a influência dos defeitos sobre as propriedades ópticas desse semicondutor. Filmes finos cristalinos de LiNbO3 (c-LN) e amorfo
Externí odkaz:
https://doaj.org/article/08a005edb57043adb268a3041eb9beba
Publikováno v:
Cerâmica, Vol 48, Iss 308, Pp 192-198 (2002)
In this work we report the synthesis of TiO2 thin films by the Organometallic Chemical Vapor Deposition (MOCVD) method. The influence of deposition parameters used during the growth in the obtained structural characteristics was studied. Different te
Externí odkaz:
https://doaj.org/article/15272fbb65d04eed87bcc8fff45d2fa8
Publikováno v:
Cerâmica, Vol 46, Iss 300, Pp 181-185 (2000)
Filmes finos de PbTiO3 dopados com 27% de lantânio, depositados em substratros MgO (100), foram preparados pelo método dos precursores poliméricos (Pechini). As resinas, das quais são obtidos os filmes, ao término do processo apresentam pH entre
Externí odkaz:
https://doaj.org/article/1ca2b486ce4c4937a6bc9c5beff223d2
Publikováno v:
Cerâmica, Vol 45, Iss 294, Pp 04-08 (1999)
De modo resumido, apresentar-se-á, trabalhos relacionados ao Grupo de Pesquisa em Materiais Cerâmicos do LIEC/ UFSCar. Serão enfatizado os resultados obtidos em varistores de óxido de estanho, cerâmica eletrônica completamente nova e os dados d
Externí odkaz:
https://doaj.org/article/40088cc1445b48d482363796ccdcc16e
Autor:
Goya, G. F., Leite, E. R.
Publikováno v:
J.Phys.Condens.Matter 15(2003)641-651
The structural and magnetic properties of ZnFe2O4 nanoparticles embedded in a non-magnetic ZnO matrix are presented. X-ray diffractograms and Transmission Electron Microscopy (TEM) images showed that the resulting samples are composed of crystalline
Externí odkaz:
http://arxiv.org/abs/1212.2798
Autor:
Goya, G. F., Fonseca, F. C., Jardim, R. F., Muccillo, R., Carreño, N. L. V., Longo, E., Leite, E. R.
Publikováno v:
J. Appl. Phys. 93, 6531 (2003)
The dynamic magnetic properties of Ni nanoparticles diluted in an amorphous SiO2 matrix prepared from a modified sol-gel method have been studied by the frequency f dependence of the ac magnetic susceptibility \c{hi}(T). For samples with similar aver
Externí odkaz:
http://arxiv.org/abs/1103.3783
Autor:
Pardo, H., Araujo-Moreira, F. M., Faccio, R., de Lima, O. F., Lanfredi, A. J. C., Cardoso, C. A., Leite, E. R., Zanelatto, G., Mombru, A. W.
Carbon materials are attracting increasing attention due to the novelty of the associated physical properties and the potential applications in high-tech devices. The possibility to achieve outstanding properties in macroscopic carbon materials opens
Externí odkaz:
http://arxiv.org/abs/cond-mat/0407303
Autor:
Cardoso, C. A., Araujo-Moreira, F. M., Andreeta, M. R. B., Hernandes, A. C., Leite, E. R., de Lima, O. F., Mombru, A. W., Faccio, R.
We have grown high-quality single crystals of the colossal-magnetoresistance (CMR) material La0.7Ca0.3MnO3 by using the laser heated pedestal growth (LHPG) method. Samples were grown as fibers of different diameters, and with lengths of the order of
Externí odkaz:
http://arxiv.org/abs/cond-mat/0308245
Superconductivity in thin films and powders, and in single crystals of Pr-123 has been found by Blackstead et al. and Zou et al., respectively. Nevertheless, up to now it has never been reported in sintered-policrystalline samples. We have prepared h
Externí odkaz:
http://arxiv.org/abs/cond-mat/9909086
Autor:
Melquíades, M. O., de Oliveira, L. S., Rebelo, Q. H. F., Chaudhuri, P., Leite, E. R., Trichês, D. M., Michielon de Souza, S.
Publikováno v:
Journal of Applied Physics; 10/7/2019, Vol. 126 Issue 13, pN.PAG-N.PAG, 8p, 3 Diagrams, 2 Charts, 4 Graphs