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Errico, L. A. ; Fabricius, G. ; Rentería, M ; Presa Muñoz del Toro, Patricia de la ; Forker, M. | American Physical Society | 2002-07-29We present an ab initio study of the relaxations introduced in TiO? when a Cd impurity substitutes a Ti atom and an experimental test of this calculation by a perturbed-angular-correlation (PAC) measurement of the orientation of the electric-fi[...]texto impreso
Taylor, M. A. ; Alonso, R. E. ; Errico, L. A. ; Lopez García, A. ; Presa Muñoz del Toro, Patricia de la ; Svane, A. ; Christensen, N. E. | American Physical Society | 2010-10-14A combination of experiments and ab initio quantum-mechanical calculations has been applied to examine hyperfine interactions in Ta-doped hafnium dioxide. Although the properties of monoclinic HfO? have been the subject of several earlier studie[...]texto impreso
Morales Casero, Irene ; Archilla Sanz, Diego ; Presa Muñoz del Toro, Patricia de la ; Hernando Grande, Antonio ; Marín Palacios, María Pilar | Nature Publishing Group | 2020-01-17It is well stablished that heating efficiency of magnetic nanoparticles under radiofrequency fields is due to the hysteresis power losses. In the case of microwires (MWs), it is not clear at all since they undergo non-coherent reversal mechanism[...]texto impreso
Forker, M. ; Müller, S. ; Presa Muñoz del Toro, Patricia de la | American Physical Society | 2007-05In their analysis of our perturbed angular correlation (PAC) study of the magnetic phase transitions of RCo? [Phys. Rev. B 68, 014409 (2003)], Herrero-Albillos [Phys. Rev. B 73, 134410 (2006)] come to the conclusion that it is very difficult for[...]texto impreso
Cobos, M.A. ; Presa Muñoz del Toro, Patricia de la ; Llorente, I. ; Garcia Escorial, A. ; Hernando Grande, Antonio ; Jiménez, J.A. | Elsevier Science | 2020-12-30Synthesis and processing methods can have a significant influence on the physical properties of spinel zinc ferrite since it can produce microstructures characterized by different microstructural parameter such as the arrangement of the ions, la[...]texto impreso
Perturbed angular correlation (PAC) spectroscopy has been used to investigate the electric field gradient (EFG) at the probe nucleus ^(111)In/^(111)Cd in the paramagnetic phase of the rare earth (R)-aluminium compounds RAl? for all R elements an[...]texto impreso
Fabricius, G. ; Peltzer, E. L. ; Rodriguez, Blanca ; Rodriguez, C. R. ; Ayala, A. P. ; Presa Muñoz del Toro, Patricia de la ; Lopez García, A. | American Physical Society | 1997-01-01Electronic structure calculations of cubic SrTiO? and SrHfO? are presented. The full-potential linear augmented-plane-wave method is used and exchange-correlation effects are treated by the local-density approximation. The tendency to ferroelect[...]texto impreso
Morales Casero, Irene ; Hernando Grande, Antonio ; Presa Muñoz del Toro, Patricia de la ; Costo Cámara, Rocío ; Mille, Nicolas ; Bezerra Da Silva, Gustavo ; Carrey, Julian | MDPI | 2018-12In order to understand the properties involved in the heating performance of magnetic nanoparticles during hyperthermia treatments, a systematic study of different gamma-Fe_2O_3 and Fe_3O_4 nanoparticles has been done. High-frequency hysteresis [...]texto impreso
Ovejero, Jesús G. ; Morales, Irene ; Presa Muñoz del Toro, Patricia de la ; Mille, Nicolas ; Carrey, Julian ; García, Miguel A. ; Hernando Grande, Antonio ; Herrasti, Paloma | Royal Society of Chemestry | 2018-08-24The present manuscript reports the use of hybrid magneto-plasmonic nanoparticles (HMPNPs) based on iron oxide nanoparticles and Au nanorods as colloidal nanoheaters. The individual synthesis of the magnetic and plasmonic components allowed optim[...]texto impreso
Arteaga Cardona, F. ; Rojas Rojas, K. ; Méndez Rojas, M. A. ; Hernando Grande, Antonio ; Presa Muñoz del Toro, Patricia de la | Elsevier Science SA | 2016-04-05Recently, potential applications of the magnetic heating for heterogeneous catalysis or organic synthesis have been reported. As these new applications are not limited by biocompatibility requirements, a wide range of possibilities for non-aqueo[...]texto impreso
Presa Muñoz del Toro, Patricia de la ; Rueda, T. ; Morales, M. P. ; Hernando Grande, Antonio | IEEE-Institute of Electrical and Electronics Engineers | 2008-11In this work, we present the magnetic properties of gold-coated FePt nanoparticles and the study of stable aqueous dispersions of FePt@Au and FePt synthesized after ligand exchange with mercaptoundecanoic acid. The particle size determined from [...]texto impreso
Urraca Ruiz, Javier ; Cortés Llanos, Belén ; Aroca, Claudio ; Presa Muñoz del Toro, Patricia de la ; Pérez García, Lucas ; Moreno Bondi, Maria C. | Amer Chemical Soc | 2018-05-10In this work, we developed a novel approach for the preparation of molecularly imprinted polymer (MIP) coatings directly onto magnetic multicore nanoparticles (MMCs) using alternating magnetic fields to trigger the polymerization reaction. MIPs [...]texto impreso
Gonzalez Fernandez, M. A. ; Torres, T. ; Andrés Vergés, M. ; Costo, R. ; Presa Muñoz del Toro, Patricia de la ; Serna, C. J. ; Morales, M. P. ; Marquina, C. ; Ibarra, M. R. ; Goya, G. F. | Elsevier | 2009-10We present a Study on the magnetic properties of naked and silica-coated Fe?O?nanoparticles with sizes between 5 and 110 nm. Their efficiency as heating agents was assessed through specific power absorption (SPA) measurements as a function of pa[...]texto impreso
Cobos Fernández, Miguel Ángel ; Presa Muñoz del Toro, Patricia de la ; Llorente, I. ; Alonso Rodríguez, José María ; Garcia Escorial, A. ; Marín Palacios, María Pilar ; Hernando Grande, Antonio ; Jiménez, J. A. | American Chemical Society | 2019-07-18Magnetic properties of spinel zinc ferrites are strongly linked to the synthesis method and the processing route since they control the microstructure of the resulting material. In this work, ZnFe_2O_4 nanoparticles were synthesized by the mecha[...]texto impreso
Lopez Maldonado, K. L. ; Presa Muñoz del Toro, Patricia de la ; Flores Tavizon, E. ; Farias Mancilla, J: R: ; Matutes Aquino, J. A. ; Hernando Grande, Antonio ; Elizalde Galindo, J. T. | American Institute of Physics | 2013-05-07Magnetite nanostructured powder samples were synthesized by aging chemical method. Phase, structural, and magnetic properties were characterized. X-ray diffraction patterns showed cubic magnetite pure phase, with average crystallite size, [...]
