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IOP publishing ltd |
Documentos disponibles de esta editorial (292)
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Domínguez-Adame Acosta, Francisco ; Méndez Martín, Bianchi ; Maciá Barber, Enrique Alfonso | IOP publishing ltd | 1994-03The electron dynamics and the density of states of both single and periodic Si delta-doped GaAs subject to an applied electric field are studied theoretically. The space charge potential due to delta-doping is obtained by means of the semiclassi[...]![]()
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Mártil de la Plaza, Ignacio ; González Díaz, Germán ; Olea Ariza, Javier | IOP publishing ltd | 2009-04-21In this paper we show that pulsed laser melted high dose implantation of Ti in Si, above the Mott transition, produces an impurity band (IB) in this semiconductor. Using the van der Pauw method and Hall effect measurements we find strong laminat[...]![]()
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Sochinskii, N. V. ; Dieguez, E. ; Pal, U. ; Piqueras de Noriega, Javier ; Fernández Sánchez, Paloma ; Agullorueda, F. | IOP publishing ltd | 1995-06Undoped and doped CdTe wafers have been thermally annealed in Ga melt, or in Cd vapour or in a vacuum to eliminate Te precipitates from the volume of the wafers. The effect of annealing conditions on the transformation of Te precipitates has bee[...]![]()
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The spatial context is criticalwhen assessing present-day climate anomalies, attributing them to potential forcings and making statements regarding their frequency and severity in a long-term perspective. Recent international initiatives have ex[...]![]()
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The long-term relationship between temperature and hydroclimate has remained uncertain due to the short length of instrumental measurements and inconsistent results from climate model simulations. This lack of understanding is particularly criti[...]![]()
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Nogales Díaz, Emilio ; Méndez Martín, Bianchi ; Piqueras de Noriega, Javier ; Garcia, J. A. | IOP publishing ltd | 2009-03-18Cathodoluminescence and photoluminescence techniques have been used to investigate room temperature light emission from ß-Ga_2O_3:Eu nanostructures, which were obtained by two methods. In one of them, a mixture of Ga_2O_3/Eu2O3 powders was used [...]![]()
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Mármol Queraltó, E. ; Cardiel López, Nicolás ; Sánchez Blázquez, P. ; Trager, S. C. ; Peletier, R. F. ; Kuntschner, H. ; Silva, D. R. ; Cenarro, A. J. ; Vazdekis, A. ; Gorgas García, Francisco Javier | IOP publishing ltd | 2009-11-10The study of stellar populations in early-type galaxies in different environments is a powerful tool for constraining their star formation histories. This study has been traditionally restricted to the optical range, where dwarfs around the turn[...]![]()
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We adapt the notion of the Darboux transformation to the context of polynomial Sturm-Liouville problems. As an application, we characterize the recently described X(m) Laguerre polynomials in terms of an isospectral Darboux transformation. We al[...]![]()
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Enciso, Alberto ; Finkel Morgenstern, Federico ; González López, Artemio ; Rodríguez González, Miguel Ángel | IOP publishing ltd | 2007-02-23We present a detailed analysis of the spin models with near-neighbours interactions constructed in our previous paper (Enciso et al 2005 Phys. Lett. B 605 214) by a suitable generalization of the exchange operator formalism. We provide a complet[...]![]()
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We present the detection and follow-up observations of planetary candidates around low-mass stars observed by the K2 mission. Based on light-curve analysis, adaptive-optics imaging, and optical spectroscopy at low and high resolution (including [...]![]()
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Muñoz Muñoz, Laura ; Molina, R. A. ; Gómez Gómez, José María ; Heusler, A. | IOP publishing ltd | 2018Theoretical calculations, especially shell-model calculations, have shown a strongly chaotic behavior of bound states at higher excitation energy, in regions of high level density. However, it had not been possible up to now to observe chaos in [...]![]()
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The time-reversed reaction O-15(2p, gamma) Ne-17 has been studied by the Coulomb dissociation technique. Secondary 17Ne ion beams at 500 AMeV have been produced by fragmentation reactions of Ne-20 in a beryllium production target and dissociated[...]![]()
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In this paper a new formalism based on exterior differential systems is derived for perfect-fluid spacetimes endowed with an abelian orthogonally transitive G_2 group of motions acting on spacelike surfaces. This formulation allows simplificatio[...]![]()
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Mogilevtsev, D. ; Teo, Y.S. ; ?ehá?ek, Jaroslav ; Hradil, Zdenek ; Tiedau, J. ; Kruse, R. ; Harder, Georg ; Silberhorn, C. ; Sánchez Soto, Luis Lorenzo | IOP publishing ltd | 2017-09-13The physical nature of any quantum source guarantees the existence of an effective Hilbert space of finite dimension, the physical sector, in which its state is completely characterized with arbitrarily high accuracy. The extraction of this sect[...]![]()
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We consider the electronic transport through a Rashba quantum dot coupled to ferromagnetic leads. We show that the interference of localized electron states with resonant electron states leads to the appearance of the Fano-Rashba effect. This ef[...]