Paper Title
Authors: Fábio Figueiras, Joaquim M. Vieira, M.E. Guzik, J. Legendziewicz, Pedro B. Tavares, Vitor S. Amaral
Abstract:A comprehensive study of CMR manganite related phases, particularly those that develop under the effects of Ca and Mn-excess co-doping is...
Authors: João S. Amaral, Mário S. Reis, Vitor S. Amaral, Tânia M. Mendonça, João P. Araújo, Pedro B. Tavares, Joaquim M. Vieira
Authors: Bernard Enrico Watts, Daniele Regonini, Fabrizio Leccabue, Francesca Casoli, Franca Albertini, Gabriele Bocelli, David S. Schmool
Abstract:M-type lead hexaferrites (PbFe12O19) have been prepared using sol-gel methods. Lead and iron precursors were dissolved in butoxyethanol and...
Authors: João A.M. Santos, João Bessa Sousa, João P. Araújo, F. Correia, J.F. Collingwood, S.B. Palmer
Abstract:We measured dilute Gd1-xYx single crystals (x < 0.1) samples using an a.c. magnetoresistance technique. This technique consists in applying...
Authors: Nuno Franco, Eduardo Alves, M. Rickart, Anibal Guedes, Paulo Freitas, Nuno P. Barradas
Abstract:Antiferromagnets (AF) such as MnPt and MnNi can be used in spin valves and tunnel junctions due to their high exchange coupling, high...
Authors: Pablo Hernández-Gómez, Carlos Torres, Carlos de Francisco, José Ignacio Iñiguez, João M. Perdigão
Abstract:The magnetic disaccommodation on polycrystalline Nd doped YIG NdxY3-xFe5O12 (0
Authors: João Ventura, A. Pereira, José M. Teixeira, João P. Araújo, Francisco Carpinteiro, Y. Liu, João Bessa Sousa, Z. Zhang, Paulo Freitas
Abstract:To commute between the different resistance states of a magnetic tunnel junction (TJ) one can use a thermally-induced pinned layer switching...
Authors: Cezarina C. Mardare, Pedro B. Tavares, Andréi I. Mardare, Raluca Savu
Abstract:A dense ceramic target of BiFeO3 was synthesized by the urea combustion method. X-ray diffraction indicates that this target is composed of a...
Authors: D. Marinha, Filipe J. Oliveira, Mário S. Reis, Florinda M. Costa, Maria Fátima Carrasco, João P. Araújo, João Bessa Sousa, Joaquim M. Vieira, Vitor S. Amaral
Abstract:Bulk MgB2 samples were synthesized by hot isostatic pressing under pressures up to 200MPa at 950°C. In these conditions, full densification...
Authors: Maria Fátima Carrasco, Jorge Monteiro, Vitor S. Amaral, Rui F. Silva, Joaquim M. Vieira, Florinda M. Costa
Abstract:Superconducting fibres of Bi-Sr-Ca-Cu-O system were grown by the conventional Laser Floating Zone (LFZ) process and by the new technique of...
Showing 61 to 70 of 346 Paper Titles