L
Luis Miguel García
Researcher at Spanish National Research Council
Publications - 51
Citations - 1586
Luis Miguel García is an academic researcher from Spanish National Research Council. The author has contributed to research in topics: Magnetization & Magnetic circular dichroism. The author has an hindex of 19, co-authored 51 publications receiving 1471 citations. Previous affiliations of Luis Miguel García include University of Zaragoza.
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Journal ArticleDOI
Universal behavior for magnetic entropy change in magnetocaloric materials: An analysis on the nature of phase transitions
C. M. Bonilla,Julia Herrero-Albillos,Fernando Bartolomé,Luis Miguel García,M. Parra-Borderías,Victorino Franco +5 more
TL;DR: In this article, the authors studied the universal behavior of the magnetocaloric effect in the family of cobalt Laves phases, RCo2, and mixed manganites, La2/3CaxSr1�x1/3MnO3, which exhibit first and second-order phase transitions.
Journal ArticleDOI
Enhancement of the magnetic anisotropy of nanometer-sized Co clusters: Influence of the surface and of interparticle interactions
Fernando Luis,Jeremie Torres,Luis Miguel García,Javier Bartolomé,Jolanta Stankiewicz,Frédéric Petroff,F. Fettar,Jean-Luc Maurice,A. Vaures +8 more
TL;DR: In this paper, the magnetic properties of spherical Co clusters with diameters between 0.8 nm and 5.2 nm were studied and the particle size distribution was determined from the equilibrium susceptibility and magnetization data and it was compared with previous structural characterizations.
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Magnetic relaxation of interacting co clusters: crossover from two- to three-dimensional lattices.
Fernando Luis,Frédéric Petroff,Jeremie Torres,Luis Miguel García,José F. Bartolomé,Julian Carrey,A. Vaurès,A. Vaurès +7 more
TL;DR: The data show without ambiguity that the magnetic relaxation becomes slower as the degree of interaction increases, and the effective activation energy increases linearly with the number of nearest neighbor clusters.
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Highly unquenched orbital moment in textured Fe-phthalocyanine thin films
José F. Bartolomé,Fernando Bartolomé,Luis Miguel García,George Filoti,Thomas Gredig,Corneliu N. Colesniuc,Ivan K. Schuller,Julio C. Cezar +7 more
TL;DR: In this paper, the authors used X-ray magnetic circular dichroism (XMCD) measurements on the FePc textured thin films to show that the ions present an unusually large, highly unquenched orbital moment, with planar anisotropy.
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Surface anisotropy broadening of the energy barrier distribution in magnetic nanoparticles
Nicolás Pérez,Pablo Guardia,Alejandro G. Roca,María del Puerto Morales,Carlos J. Serna,Òscar Iglesias,Fernando Bartolomé,Luis Miguel García,Xavier Batlle,Amílcar Labarta +9 more
TL;DR: It is shown that the contribution of the particle surface to the total anisotropy energy can be well described by a size-independent value of the surface energy per unit area which permits the superimposition of the distributions corresponding to the particle core and effective anisOTropy energies.