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Autor González Herrera, Elvira María |
Documentos disponibles escritos por este autor (46)
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Villegas, J. E. ; Sefrioui, Zouhair ; Varela del Arco, María ; González Herrera, Elvira María ; Santamaría Sánchez-Barriga, Jacobo ; Vicent López, José Luis | American Physical Society | 2004-04We study angular dependent magnetoresistance in the vortex-liquid phase of epitaxial YBa2Cu3O7 thin films and YBa_2Cu_3O_7/PrBa_2Cu_3O_7 superlattices. Superlattices were grown with different PrBa_2Cu_3O_7 thickness in order to tune coupling bet[...]texto impreso
González Herrera, Elvira María ; González Casado, J.M. ; Vicent López, José Luis | American Physical Society | 2000-10-01a-axis oriented (CuO_2 planes perpendicular to the substrate) films and superlattices grown on cubic substrates show a structure with 90° microdomains. The microdomains are grains with a 90° rotation of the c axis. In the vortex liquid region, t[...]texto impreso
Dinis Vizcaíno, Luis Ignacio ; González Herrera, Elvira María ; Anguita, J. V. ; Parrondo, J. M. R. ; Vicent López, José Luis | IOP Publishing | 2007-10-09Competition between the vortex lattice and a lattice of asymmetric artificial defects is shown to play a crucial role in ratchet experiments in superconducting films. We present a novel and collective mechanism for current reversal based on a re[...]texto impreso
Dinis Vizcaíno, Luis Ignacio ; González Herrera, Elvira María ; Anguita, J. V. ; Rodríguez Parrondo, Juan Manuel ; Vicent López, José Luis | IOP Publishing | 2007-10-09Competition between the vortex lattice and a lattice of asymmetric artificial defects is shown to play a crucial role in ratchet experiments in superconducting films. We present a novel and collective mechanism for current reversal based on a re[...]texto impreso
Gálvez, F. ; Valle, J. del ; Gómez Gutiérrez, Alicia ; González Herrera, Elvira María ; Navarro Palma, Elena ; Vicent López, José Luis ; Soriano, N. ; Mora, B. ; Rollano, V. ; Gargiani, P. | American Institute of Physics | 2020-06-01The development of multilayered materials with engineered magnetic properties compels a deep knowledge of physical properties at the atomic scale. The magnetic anisotropy is a key property in these materials. This work accounts for the magnetic [...]texto impreso
Ory, M.C. de ; Rollano, V. ; Gómez, A. ; Menghini, M. ; Muñoz Noval, Álvaro ; González Herrera, Elvira María ; Vicent López, José Luis | Nature Publishing Group | 2020-06-25Little-Parks effect names the oscillations in the superconducting critical temperature as a function of the magnetic field. This effect is related to the geometry of the sample. In this work, we show that this effect can be enhanced and manipula[...]texto impreso
Joshi, Amish G ; Kryukov, Sergiy A. ; De Long, Lance E. ; González Herrera, Elvira María ; Navarro Palma, Elena ; Villegas, Javier E. ; Vicent López, José Luis | American Institute of Physics | 2007-05-01We report vibrating reed and superconducting quantum interference device magnetometer data that exhibit prominent dips or oscillations of the superconducting (SC) onset temperature, Delta T(C)(H)approximate to 0.01-0.7 K, for a [Nb(23 nm)/Ni(5 n[...]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 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
González Herrera, Elvira María ; Montero, M. I. ; Cebollada, F. ; De Julián Fernández, C ; Vicent López, José Luis ; González, J. M. | E D P Sciences | 1998-04-01We analyze the magnetic properties of mechanically ground nanosized Ni particles dispersed in a SiO_2 matrix. Our magnetic characterization of the as-milled samples show the occurrence of two blocking processes and that of non-monotonic milling [...]texto impreso
Lin, Y. ; González Herrera, Elvira María ; Méndez, E. E. ; Magno, R. ; Bennett, B. R. ; Bracker, A.S. | American Physical Society | 2003-07-15We have observed that the tunneling magnetoconductance between two-dimensional (2D) electron gases, formed at nominally identical InAs-AlSb interfaces, most often exhibits two sets of Shubnikov-de Haas oscillations with almost the same frequency[...]texto impreso
We have measured the zero-bias differential tunneling conductance of InAs/AlSb/GaSb/AlSb/InAs heterostructures at law temperatures (1.7 Ktexto impreso
Gómez Gutiérrez, Alicia ; González Herrera, Elvira María ; Vicent López, José Luis ; Cebollada Barata, Federico A. ; Palomares Simón, Francisco Javier ; Sánchez Agudo, Marta ; Urdiroz Urricelqui, Unai | IOP publishing ltd | 2019-02-27With the aim of achieving stable, substantial remanences adequate for exploitation in stray field-based applications, we report on the hysteresis behavior occurring in arrays of single-crystal Fe motifs, a-beam lithographed into prisms with tria[...]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 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
González Herrera, Elvira María ; Folgueras, A. D. ; Escudero, R. ; Ferrer, J.M. ; Guinea, F. ; Vicent López, José Luis | IOP Publishing | 2007-02-21We have measured the tunnelling current in Nb/Nb_xO_y/Ni planar tunnel junctions at different temperatures. The junctions are in the intermediate transparency regime. We have extracted the current polarization of the metal/ferromagnet junction w[...]