Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Mario Norberto Baibich"'
Autor:
Evgeni Cruz de Gracia, Lucio Strazzabosco Dorneles, Luiz Fernando Schelp, Sérgio Ribeiro Teixiera, Mario Norberto Baibich
Publikováno v:
Revista de I + D Tecnológico, Vol 8, Iss 1, Pp 26-32 (2012)
This paper reports on the study of ferromagnetic tunneling junctions produced by magnetron sputtering technique and deposited under oxidation conditions that lead to low potential barrier height, low asymmetrical barrier and quantum tunneling as the
Externí odkaz:
https://doaj.org/article/345bf1ff742c4c10b3aad231832376c1
Autor:
Tiago Bender Wermuth, Janio Venturini, Waleska Campos Guaglianoni, Mario Norberto Baibich, Carlos Perez Bergmann, Sabrina Arcaro, Edgar.A. Chavarriaga, Amanda Mallmann Tonelli
Publikováno v:
Ceramics International. 47:4874-4883
In this work, multiferroic composites were produced from CoFe2O4 and KNbO3 mixtures via control of the heat treatment temperature. For this, CoFe2O4 nanoparticles were produced by sol-gel method, while KNbO3 was synthesized by microwave-assisted hydr
Autor:
Tiago Bender Wermuth, Adriane De Assis Lawisch Rodriguez, Ênio Leandro Machado, Mario Norberto Baibich, Carlos Perez Bergmann, Sarah Carobini Werner de Souza Eller Franco de Oliveira, Tania Maria Hubert Ribeiro, Sabrina Arcaro, Janio Venturini, Tiago Franco de Oliveira
Publikováno v:
Ceramics International. 45:24137-24145
In this work, KNbO3 perovskite nanostructures were prepared at different Nb2O5:KOH molar ratios via microwave-assisted hydrothermal synthesis. The structural and optical properties of the samples were characterized by XRD, SEM, TEM, diffuse reflectan
Autor:
Tiago Bender Wermuth, Mario Norberto Baibich, Tania Maria Hubert Ribeiro, Carlos Perez Bergmann
Publikováno v:
Ceramics International. 44:4758-4765
We studied the molar ratio effects of niobium and potassium precursors on the structure and morphology of potassium niobate powders prepared via microwave-assisted hydrothermal synthesis (MaHS). KNbO3 nanostructures in the form of nanotowers and nano
Autor:
Gerardo Martínez, Valentina Zhukova, J.J. del Val, J. Mino, Margarita Churyukanova, Rastislav Varga, Arcady Zhukov, Mario Norberto Baibich, Mihail Ipatov
Publikováno v:
Journal of Alloys and Compounds. 695:976-980
The influence of annealing on structure and temperature and magnetic field dependences of resistance of Cu100-xCox (x = 5, 10, 20) glass-coated microwires prepared using Taylor-Ulitovsky has been studied. All Cu100-xCox microwires present resistivity
Autor:
Valentina Zhukova, Alexander Granovsky, J. Mino, J.J. del Val, Mario Norberto Baibich, Rastislav Varga, Mihail Ipatov, Gerardo Martínez, Arcady Zhukov
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 30:1109-1114
We studied the effect of annealing on magneto-transport, magnetic, and structural properties of Cu100−x Co x (x = 5, 10, 20) glass-coated microwires prepared using the Taylor-Ulitovsky technique. Both as-prepared and annealed samples exhibit magnet
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
We have studied Co/Cu multilayers to understand the effect of the sample’s width on their magnetoresistance (MR). By keeping constant both the length and the thickness and exploring the widths within the range of usual magnetic domain sizes in thos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de4c6f2bbffc477d03dc35a541032b6b
Publikováno v:
Boletín de la Sociedad Española de Cerámica y Vidrio. 47:178-182
Las propiedades magneticas de las soluciones solidas ErxY1-xCo0.50Mn0.50O3 (0.0 = x = 1.0) son consecuencia de una sutil interrelacion de las diferentes interacciones entre los momentos magneticos del Er3+ y de otras entidades magneticas presentes en
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
We have obtained a series of magnetic oxides based on manganese with remarkable magnetic properties at low temperatures. We associate the magnetic effects to three networks of local magnetic moments that interact to form the magnetization behaviour.
Autor:
M.G.M. Miranda, A.T. da Rosa, Mario Norberto Baibich, Gerardo Martínez, R. Hinrichs, Ernesto Estevez-Rams, A.B. Antunes, U. Golla-Schindler
Publikováno v:
Physica B: Condensed Matter. 384:175-178
We explore the relation of nanostructures with the appearance of giant magnetoresistance (GMR) in melt-spun CuCo ribbons. We find by energy-filtered transmission electron microscopy that the ribbons are composed of a periodic distribution of Co withi