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Autor Presa Muñoz del Toro, Patricia de la |
Documentos disponibles escritos por este autor (31)
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Lopez Maldonado, K. L. ; Vazquez Zubiate, L. ; Presa Muñoz del Toro, Patricia de la ; Matutes Aquino, J. A. ; Elizalde Galindo, J. T. | American Institute of Physics | 2014-05-07Manganese and Zinc ferrites were prepared by solid state reaction. The resulting powders were pressed into pellets and heat treated at 1100 ?C. The samples were characterized by using X-ray diffraction, pure phases of zinc ferrite (ZnFe²O?) and [...]texto impreso
Presa Muñoz del Toro, Patricia de la ; Luengo, Y. ; Velasco, V. ; Morales, P. M. ; Iglesias, M. ; Veintemillas-Verdaguer, S. ; Crespo del Arco, Patricia ; Hernando Grande, Antonio | Amer Chemical Soc | 2015-05-21The influence of magnetic interactions in assemblies formed by either aggregated or disaggregated uniform gamma-Fe_2O_3 particles are investigated as a function of particle size, concentration, and applied field. Hyperthermia and magnetization m[...]texto impreso
Presa Muñoz del Toro, Patricia de la ; Lieb, K. P. ; Uhrmacher, M. ; Ziegeler, L. | Verlag Z Naturforsch | 2000-01The quadrupole hyperfine interactions of ^111Cd/^111 probe nuclei in single-crystalline SrTiO? perovskite samples were investigated using Perturbed Angular Correlation spectroscopy. Three electric field gradients were detected and their fraction[...]texto impreso
Forker, M. ; Müller, S. ; Presa Muñoz del Toro, Patricia de la | American Physical Society | 2003-07-01The order and other properties of the magnetic phase transitions in the rare-earth (R)-cobalt Laves phases RCo2 have been studied for R=Gd, Tb, Dy, Ho, Er, Sm, Nd, and Pr by measuring the temperature dependence of the magnetic hyperfine interact[...]texto impreso
Lopez García, A. ; Presa Muñoz del Toro, Patricia de la ; Rodriguez,, A. M. ; Saitovitch, H. ; Silva, P. R. J. | American Physical Society | 1993-01-01Samples of BaHfO? were irradiated with fast and thermal neutrons to produce ^181Hf. Attenuations of the gamma-gamma perturbed angular correlations in ^181Ta were observed, and they may have been caused by the interaction between defects (produce[...]texto impreso
Presa Muñoz del Toro, Patricia de la ; Pasquevich, A. F. ; Forker, M. | American Physical Society | 2005-10The spectrum of the magnetic hyperfine fields at the closed-shell probe nucleus ^111 Cd on the rare earth (R) site of the pseudobinary Laves-phase compounds R_81-x)Y_xCo? has been investigated by perturbed angular correlation (PAC) spectroscopy [...]texto impreso
Pozo, Guillermo ; Presa Muñoz del Toro, Patricia de la ; Prato, Rafael ; Morales Casero, Irene ; Marín Palacios, María Pilar ; Fransaer, Jan ; Dominguez-Benetton, Xochitl | Royal Society of Chemistry | 2020-03-07Materials displaying novel magnetic ground states signify the most exciting prospects for nanoscopic devices for nanoelectronics and spintronics. Spin transition materials, e.g., spin liquids and spin glasses, are at the forefront of this pursui[...]texto impreso
Presa Muñoz del Toro, Patricia de la ; Rueda, T. ; Hernando Grande, Antonio ; Ramallo López, J. M. ; Giovanetti, L. J. ; Requejo, F. G. | American Institute of Physics | 2008-05-15In this work we present new results on spontaneous oxidation of disordered fcc FePt nanoparticles. The "as-made" oleic acid and oleylamine coated FePt nanoparticles of average size 4 nm synthesized by a high-boiling coordinating solvent method w[...]texto impreso
Presa Muñoz del Toro, Patricia de la ; Multigner, M. ; Venta,, J. de la ; García, M. A. ; Ruiz González, M. L. | American Institute of Physics | 2006-12-15In this work the study of oleic acid and oleylamine-capped gold nanoparticles is presented. The structural characterization of the sample shows 6.7 nm gold nanoparticles with a narrow size distribution. The experimental optical absorption spectr[...]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 | 2012-04-06A combination of experiments and ab initio quantum-mechanical calculations has been applied to examine electronic, structural, and hyperfine interactions in pure and Ta-doped zirconium dioxide in its monoclinic phase (m-ZrO?). From the theoretic[...]texto impreso
Roth,, J. ; Uhrmacher,, M. ; Presa Muñoz del Toro, Patricia de la ; Ziegeler, L. ; Lieb, K. P. | Verlag Z Naturforsch | 2000-01Phase transitions in the ferroelectric perovskite BaTiO? were studied for ^111In-implanted polycrystalline samples by measuring the electric field gradients by means of Perturbed Angular Correlation spectroscopy. The phase transitions between th[...]texto impreso
Schlabach, S. ; Szabó, D. V. ; Vollath, D. ; Presa Muñoz del Toro, Patricia de la ; Forker, M. | American Institute of Physics | 2006-07-15Bare and coated TiO? nanoparticles with particle sizes dtexto impreso
Forker, M. ; Presa Muñoz del Toro, Patricia de la ; Hoffbauer, W. ; Schlabach, S. ; Bruns, M. ; Szabó, D. V. | American Physical Society | 2008-02Structure, phase transformations, grain growth, and defects of bare and alumina-coated nanoparticles of HfO? and ZrO? synthesized in a microwave-plasma process have been investigated by x-ray diffraction (XRD), transmission electron microscopy ([...]texto impreso
Presa Muñoz del Toro, Patricia de la ; Multigner, M. ; Morales, M. P. ; Rueda, T. ; Fernandez Pinel, E. ; Hernando Grande, Antonio | Elsevier Science BV | 2007-09In this work, the structural and magnetic properties of the gold- coated FePt nanoparticles synthesized from high- temperature solution phase are presented. The amount of gold was optimized to obtain most of the FePt particles coated. The partic[...]texto impreso
Lopez García,, A. R. ; Presa Muñoz del Toro, Patricia de la ; Rodiguez, A. M. | American Physical Society | 1991-11-01The temperature dependence of the hyperfine interaction in the paraelectric phase of BaHfO? in the temperature range from liquid-nitrogen temperature to 1350 K has been studied. The experimental results show an Abragam-Pound mechanism for the at[...]