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IOP publishing ltd |
Documentos disponibles de esta editorial (292)
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Weinfurtner, Silke ; De las Cuevas, Gemma ; Martín-Delgado Alcántara, Miguel Ángel ; Briegel, Hans J. | IOP publishing ltd | 2014-03-07We present a new description of discrete space-time in 1+1 dimensions in terms of a set of elementary geometrical units that represent its independent classical degrees of freedom. This is achieved by means of a binary encoding that is ergodic i[...]![]()
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Roy, C.L. ; Méndez Martín, Bianchi ; Domínguez-Adame Acosta, Francisco | IOP publishing ltd | 1994-05-21A relativistic equation is derived for a slowly varying potential by suitably approximating the one-dimensional Dirac equation. This equation is shown to be akin to the Schrodinger equation with an effective potential and effective eigenvalues. [...]![]()
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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[...]![]()
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We study double-barrier interfaces separating regions of asymptotically subsonic and supersonic flow of Bose condensed atoms. These setups contain at least one black hole sonic horizon from which the analogue of Hawking radiation should be gener[...]![]()
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Olea Ariza, Javier ; López, E. ; Antolín, E. ; Martí, A. ; Luque, A. ; García Hemme, Eric ; Pastor, D. ; García Hernansanz, Rodrigo ; Prado Millán, Álvaro del ; González Díaz, Germán | IOP publishing ltd | 2016-02-10Silicon samples were implanted with high Ti doses and subsequently processed with the pulsed-laser melting technique. The electronic transport properties in the 15–300?K range and the room temperature spectral photoresponse at energies over the [...]![]()
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Guerrero Roman, Merce ; Mora Pérez, Gerardo ; Olmo, Gonzalo J. ; Orazi, Emanuele ; Rubiera García, Diego | IOP publishing ltd | 2020-07We find an exact, rotating charged black hole solution within Eddington-inspired Born-Infeld gravity. To this end we employ a recently developed correspondence or mapping between modified gravity models built as scalars out of contractions of th[...]![]()
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We consider electron dynamics in two-band semiconductor superlattices within the envelope function approximation. We develop a numerical method, based on the properties of the periodic continued fractions, to find the dispersion relation inside [...]![]()
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Ballesteros, H.G. ; Fernández Pérez, Luis Antonio ; Martín Mayor, Víctor ; Muñoz Sudupe, Antonio ; Parisi, G. ; Ruiz Lorenzo, J. J. | IOP publishing ltd | 1999-01-08Using Finite-Size Scaling techniques we obtain accurate results for critical quantities of the Ising model and the site percolation, in three dimensions. We pay special attention in parameterizing the corrections-to-scaling, what is necessary to[...]![]()
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Dislocation lines in {110} sections of In-doped GaAs are imaged by scanning electron acoustic microscopy (SEAM). Cathodoluminescence measurements show the presence of a high indium concentration at dislocations. It is proposed that the semi-insu[...]![]()
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Nogales Díaz, Emilio ; Méndez Martín, Bianchi ; Piqueras de Noriega, Javier ; Plugaru, R | IOP publishing ltd | 2001-09Scanning tunnelling microscopy (STM) has been sometimes applied in recent years to characterize porous silicon. In contrast, other forms of light emitting Si, such as nanocrystalline silicon films, prepared by different methods, have not been, o[...]![]()
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Urbieta Quiroga, Ana Irene ; Fernández Sánchez, Paloma ; Piqueras de Noriega, Javier ; Sekiguchi, T. | IOP publishing ltd | 2001-07Bulk ZnO single crystals grown by the hydrothermal and flux methods have been characterized by scanning tunnelling spectroscopy performed in the different crystalline faces. Normalized differential conductance has been found to depend on the fac[...]![]()
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Arqueros Martínez, Fernando ; García Pinto, Diego ; Minaya Flores, Ignacio Andrés ; Rosado Vélez, Jaime ; Vázquez Peñas, José Ramón | IOP publishing ltd | 2016-01This paper presents the results of different searches for correlations between very high-energy neutrino candidates detected by IceCube and the highest-energy cosmic rays measured by the Pierre Auger Observatory and the Telescope Array. We first[...]![]()
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Arqueros Martínez, Fernando ; García Pinto, Diego ; Minaya Flores, Ignacio Andrés ; Vázquez Peñas, José Ramón ; otros, ... | IOP publishing ltd | 2017-04A search for ultra-high energy photons with energies above 1 EeV is performed using nine years of data collected by the Pierre Auger Observatory in hybrid operation mode. An unprecedented separation power between photon and hadron primaries is a[...]![]()
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Arganda, E. ; Arqueros Martínez, Fernando ; Blanco Ramos, Francisco ; García Pinto, Diego ; Minaya Flores, Ignacio Andrés ; Ortiz Ramis, Montserrat ; Rosado Vélez, Jaime ; Vázquez Peñas, José Ramón | IOP publishing ltd | 2012-12-01A thorough search of the sky exposed at the Pierre Auger Cosmic Ray Observatory reveals no statistically significant excess of events in any small solid angle that would be indicative of a flux of neutral particles from a discrete source. The se[...]![]()
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Arqueros Martínez, Fernando ; Blanco Ramos, Francisco ; García Pinto, Diego ; Minaya Flores, Ignacio Andrés ; Ortiz Ramis, Monserrat ; Rosado Vélez, Jaime ; Vázquez Peñas, José Ramón | IOP publishing ltd | 2014-07-10Measurements of air showers made using the hybrid technique developed with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for point sources of EeV photons anywhere in the exposed sky. A multivaria[...]