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González Herrera, Elvira María ; Villegas, J. E. ; Varela del Arco, María ; Santamaría Sánchez-Barriga, Jacobo ; Prieto, P. ; Schuller, Ivan K. ; Vicent López, José Luis | American Institute of Physics | 2002-05-27Bi_2Sr_2CaCu_2O_8, RBa_2Cu_3O_7 (R=Y, Eu) thin films and RBa_2Cu_3O_7/PrBa_2Cu_3O_7 superlattices have been fabricated by sputtering technique. The anisotropic dissipation was measured close to the critical temperatures with high applied magneti[...]texto impreso
Villegas, J. E. ; González Herrera, Elvira María ; Montero,, M. I. ; Schuller, Ivan K. ; Vicent López, José Luis | American Physical Society | 2003-12Rectangular pinning arrays of Ni dots define a potential landscape for vortex motion in Nb films. Magnetotransport experiments in which two in-plane orthogonal electrical currents are injected simultaneously allow one to select the direction and[...]texto impreso
Gálvez Alonso, Fernando ; Monton, C. ; Serrano, A., A. ; Valmianski, I. ; De la Venta, J. ; Schuller, Ivan K. ; García, M. A. | Elsevier Science S A | 2012-09We study the effect of photodiode angular response on the measurement of surface plasmon resonance (SPR) in metallic thin films using the Kretschmann-Raether configuration. The photodiode signal depends not only on the light intensity but also o[...]texto impreso
Navarro Palma, Elena ; Monton, C. ; Pereiro, J. ; Basaran, Ali C. ; Schuller, Ivan K. | American Physical Society | 2015-09-21We present a comparative study of vortex pinning efficiency in superconducting (V) thin films grown on two similar triangular arrays of superconducting (Nb) and nonsuperconducting (Cu) nanodots. Resistance and magnetization anomalies at the same[...]texto impreso
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Pérez de Lara, David ; Castaño, F. J. ; Ng, B. G. ; Körner, H. S. ; Dumas, R. K. ; González Herrera, Elvira María ; Liu, Kai ; Ross,, C. A. ; Schuller, Ivan K. ; Vicent López, José Luis | American Institute of Physics | 2011-10-31Strong superconducting pinning effects are observed from magnetic landscapes produced by arrays of circular rings with varying magnetic remanent states. The collective and the background pinning of superconducting Nb films is strongly enhanced b[...]texto impreso
Pérez de Lara, David ; Castaño, F. J. ; Ng,, B. G. ; Körner, H. S. ; Dumas, R. K. ; González Herrera, Elvira María ; Liu, Kai ; Ross,, C. A. ; Schuller, Ivan K. ; Vicent López, José Luis | American Physical Society | 2009-12A ratchet effect (the rectification of an ac injected current) which is purely magnetic in origin has been observed in a superconducting-magnetic nanostructure hybrid. The hybrid consists of a superconducting Nb film in contact with an array of [...]texto impreso
Serrano, A. ; Monton, C. ; Valmianski, I. ; Gálvez Alonso, Fernando ; Cortajarena, Aitziber L. ; De la Venta, J. ; Schuller, Ivan K. ; García, M. A. | American Institute of Physics | 2014-03-14We present a Surface Plasmon Resonance spectroscopy study of Co-Phthalocyanine (CoPc) thin films grown on Au layers at different substrate temperatures. We demonstrate that for quantitative analysis, fitting of the resonance angle alone is insuf[...]texto impreso
Ramírez, J. G. ; Schmidt, Rainer ; Sharoni, A. ; Gómez, M. E. ; Schuller, Ivan K. ; Patiño, Edgar J. | American Institute of Physics | 2013-02-11Temperature dependent dielectric spectroscopy measurements on vanadium dioxide thin films allow us to distinguish between the resistive, capacitive, and inductive contributions to the impedance across the metal-insulator transition (MIT). We dev[...]texto impreso
Villegas, J. E. ; González Herrera, Elvira María ; Montero, M. I. ; Schuller, Ivan K. ; Vicent López, José Luis | American Physical Society | 2005-08We have studied vortex-lattice dynamics as a function of driving force direction, in superconducting Nb films with periodic pinning arrays of magnetic dots. Square and rectangular symmetry arrays define channels that guide the vortex-lattice mot[...]texto impreso
Gómez, A. ; Valle Granda, Javier del ; González Herrera, Elvira María ; Chiliotte, C. E. ; Carreira, S. J. ; Bekeris, V. ; Prieto, J. L. ; Schuller, Ivan K. ; Vicent López, José Luis | IOP publishing ltd | 2014Hybrid magnetic arrays embedded in superconducting films are ideal systems to study the competition between different physical (such as the coherence length) and structural length scales such as are available in artificially produced structures.[...]texto impreso
Pérez de Lara, David ; Erekhinsky, M. ; González Herrera, Elvira María ; Rosen, Y. J. ; Schuller, Ivan K. ; Vicent López, José Luis | American Physical Society | 2011-05-09Triangular arrays of Ni nanotriangles embedded in superconducting Nb films exhibit unexpected dynamical vortex effects. Collective pinning with a vortex-lattice configuration different from the expected fundamental triangular "Abrikosov state" i[...]
