Física de la Materia Condensada
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Influence of Milling Time on the Homogeneity and Magnetism of a Fe70Zr30 Partially Amorphous Alloy: Distribution of Curie Temperatures [Article]
(MDPI, 2020)In this work, the mechanically alloyed Fe70Zr30 (at. %) composition has been used to study the influence of milling time on its homogeneity and magnetic properties. The microstructure and Fe environment results show the ...
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Porous Graphene-like Carbon from Fast Catalytic Decomposition of Biomass for Energy Storage Applications [Article]
(American Chemical Society, 2019)A novel carbon material made of porous graphene-like nanosheets was synthesized from biomass resources by a simple catalytic graphitization process using nickel as a catalyst for applications in electrodes for energy storage ...
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¿Puede la situación geográfica de España explicar las aparentes anomalías de sus horarios sociales? [Article]
(Real Sociedad Española de Física, 2015-04)Se analizan los horarios de inicio y fin de jornada de los trabajadores de regiones de España, Italia, Reino Unido e Irlanda a partir de datos obtenidos de sus respectivas Encuestas de Uso del Tiempo. Los horarios civiles ...
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Influence of Thermal and Magnetic History on Direct DTad Measurements of Ni49+xMn36-xIn15 Heusler Alloys [Article]
(MDPI, 2019-10-25)In the present work, using Heusler Ni49+xMn36-xIn15 (with x = 0 and 0.5) alloys, it is shown that the choice of the appropriate measurement protocol (erasing the prior state of the sample in between experiments) in DTad ...
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First order transitions by conduction calorimetry: Application to deuterated potassium dihydrogen phosphate ferroelastic crystal under uniaxial pressure [Article]
(AIP Publishing, 1997)The specific heat c and the heat power W exchanged by a Deuterated Potassium Dihydrogen Phosphate ferroelectric-ferroelastic crystal have been measured simultaneously for both decreasing and increasing temperature at a low ...
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The long term impact of Daylight Saving Time regulations in daily life at several circles of latitude [Article]
(Springer Nature, 2019-12-05)We analyze large scale (N~10000) time use surveys in United States, Spain, Italy, France and Great Britain to ascertain seasonal variations in the sleep/wake cycle and the labor cycle after daylight saving time regulations ...
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Evidence of spin disorder at the surface–core interface of oxygen passivated Fe nanoparticles [Article]
(AIP Publishing, 1998)Hysteresis, thermal dependence of magnetization, and coercivity of oxide coated ultrafine Fe particles prepared by inert gas condensation and oxygen passivation have been studied in the 5–300 K range. The results are ...
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Effect of the Si/B ratio on the magnetic anisotropy distribution of Fe73.5Si22.52xBxCu1Nb3 „x57,9,16… alloys along nanocrystallization [Article]
(AIP Publishing, 1998)The effect of the Si/B ratio on the magnetic anisotropy distribution of Fe73.5Si22.52xBxCu1Nb3 (x57,9,16) alloys has been studied. The influence of isochronal annealing on the hysteresis loop of the three studied alloys ...
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Correlations between Elastic, Calorimetric, and Polar Properties of Ferroelectric PbSc0.5Ta0.5O3 (PST) [Article]
(AIP, 2019-10-18)Calorimetric, elastic, and polar properties of ferrolectric lead scandium tantalate PbSc0.5Ta0.5O3 (PST) with 65% cation order have been investigated in the vicinity of the paraelectric-ferroelectric transition at Ttrans ...
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Effect of stress and/or field annealing on the magnetic behavior of the „Co77Si13.5B9.5…90Fe7Nb3 amorphous alloy [Article]
(AIP Publishing, 2005)Variations of coercive field, induced magnetic anisotropy, and saturation magnetostriction constant in sCo77Si13.5B9.5d90Fe7Nb3 amorphous ribbons submitted to stress and/or axial magnetic-field annealing are reported. ...
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Dipole–dipole interaction in superparamagnetic nanocrystalline Fe63.5Cr10Si13.5B9Cu1Nb3 [Article]
(AIP Publishing, 2001)Cr-substituted Finemet-type nanocrystalline alloy (Fe63.5Cr10Si13.5B9Cu1Nb3) has been studied by differential scanning calorimetry, x-ray diffraction, Mo¨ssbauer spectroscopy, and magnetic measurements. The Curie temperature ...
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An investigation of silicon carbide-water nanofluid for heat transfer applications [Article]
(AIP Publishing, 2009)Thermal conductivity and mechanical effects of silicon carbide nanoparticles uniformly dispersed in water were investigated. Mean size of SiC particles was 170 nm with a polydispersity of 30% as determined from small-angle ...
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Deuteration effect on tricritical phase transition of triglycine selenate: Calorimetric and dielectric measurements analyzed in the framework of Landau theory [Article]
(AIP Publishing, 2010)The ferroelectric phase transition of three single crystals of TGSe1−x DTGSex has been described by using specific heat, latent heat, and dielectric permittivity measurements. Pure, half-deuterated, and highly-deuterated ...
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Determinación y estudio de algunas variables de electricidad atmosférica en Sevilla [PhD Thesis]
(1980-11-14) -
Fronteras de coincidencias en bicristales de plata [PhD Thesis]
(1980) -
Termoquímica del cambio iónico [PhD Thesis]
(1978-07) -
Optimización de sistemas de suministro de energía y de su impacto ambiental mediante métodos heurísticos [PhD Thesis]
(1999-06-30) -
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Cristalización de vídrios metálicos del sistema Fe-B-Si [PhD Thesis]
(1988-09-05) -
Hydrogen Storage Mechanisms in Mg-based nanocrystalline materials [PhD Thesis]
(2006-12)