José Miguel García-Martín

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Growth regimes of gold thin films deposited by magnetron sputtering at oblique angles and low temperatures are studied from both theoretical and experimental points of view. Thin films were deposited in a broad range of experimental conditions by varying the substrate tilt angle and background pressure, and were analyzed by field emission scanning electron(More)
A comparison between sensing performance of traditional SPR (Surface Plasmon Resonance) and magneto-optic SPR (MOSPR) transducing techniques is presented in this work. MOSPR comes from an evolution of traditional SPR platform aiming at modulating Surface Plasmon wave by the application of an external magnetic field in transverse configuration. Previous work(More)
Bacterial colonization and biofilm formation on orthopedic implants is one of the worst scenarios in orthopedic surgery, in terms of both patient prognosis and healthcare costs. Tailoring the surfaces of implants at the nanoscale to actively promote bone bonding while avoiding bacterial colonization represents an interesting challenge to achieving better(More)
It is well known that localized surface plasmon resonances (LSPRs) greatly influence the optical properties of metallic nanostructures. The spectral location of the LSPR is sensitive to the shape, size, and composition of the nanostructure, as well as on the optical properties of the surrounding dielectric. The latter effect has been used to develop(More)
C. Martínez Boubeta, C. Clavero, J.M. García-Martín, G. Armelles and A. Cebollada (a) Instituto de Microelectrónica de Madrid-IMM (CNM-CSIC), Isaac Newton 8PTM. 28760 Tres Cantos, Madrid, Spain. Ll. Balcells Instituto de Ciencia de Materiales de Barcelona-ICMAB (CSIC), Campus de la Universitat Autònoma de Barcelona. 08193 Bellaterra, Catalunya, Spain. J. L.(More)
J. B. González-Díaz, J. M. García-Martín, A. García-Martín, D. Navas, A. Asenjo, M. Vázquez, M. Hernández-Vélez, and G. Armelles Instituto de Microelectrónica de Madrid (IMM-CNM-CSIC), Isaac Newton 8, Tres Cantos, 28760 Madrid, Spain Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC), Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain(More)
J. B. González-Díaz,1 A. García-Martín,1 G. Armelles,1 J. M. García-Martín,1 C. Clavero,1 A. Cebollada,1,2 R. A. Lukaszew,3 J. R. Skuza,3 D. P. Kumah,2 and R. Clarke2 1Instituto de Microelectrónica de Madrid, Consejo Superior de Investigaciones Científicas, Isaac Newton 8, Tres Cantos, E-28760 Madrid, Spain 2FOCUS Center, University of Michigan, Ann Arbor,(More)
In this work we discuss the excitation of parallel collective resonances in arrays of gold nanoparticles. Parallel collective resonances result from the coupling of the nanoparticles localized surface plasmons with diffraction orders traveling in the direction parallel to the polarization vector. While they provide field enhancement and delocalization as(More)
We study how the magneto-optical activity in polar configuration of continuous Au/Co/Au trilayers is affected by the excitation of localized plasmon resonances of an array of Au nanodiscs fabricated on top of them over a dielectric SiO(2) spacer. We show that the effect of the nanodiscs array is twofold. First, it optimizes the absorption of light at(More)
The magnetization reversal in exchange-biased ferromagnetic-antiferromagnetic (FM-AFM) bilayers is investigated. Different reversal pathways on each branch of the hysteresis loop, i.e., asymmetry, are obtained both experimentally and theoretically when the magnetic field is applied at certain angles from the anisotropy direction. The range of angles and the(More)