55 resultados para José Enrique Rodó

em Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco


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Quantum well states of Ag films grown on stepped Au(111) surfaces are shown to undergo lateral scattering, in analogy with surface states of vicinal Ag(111). Applying angle resolved photoemission spectroscopy we observe quantum well bands with zone-folding and gap openings driven by surface/interface step lattice scattering. Experiments performed on a curved Au(111) substrate allow us to determine a subtle terrace-size effect, i.e., a fine step-density-dependent upward shift of quantum well bands. This energy shift is explained as mainly due to the periodically stepped crystal potential offset at the interface side of the film. Finally, the surface state of the stepped Ag film is analyzed with both photoemission and scanning tunneling microscopy. We observe that the stepped film interface also affects the surface state energy, which exhibits a larger terrace-size effect compared to surface states of bulk vicinal Ag(111) crystals

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The fields of organic electronics and spintronics have the potential to revolutionize the electronics industry. Finding the right materials that can retain their electrical and spin properties when combined is a technological and fundamental challenge. We carry out the study of three archetypal organic molecules in intimate contact with the BiAg2 surface alloy. We show that the BiAg2 alloy is an especially suited substrate due to its inertness as support for molecular films, exhibiting an almost complete absence of substrate-molecular interactions. This is inferred from the persistence of a completely unaltered giant spin-orbit split surface state of the BiAg2 substrate, and from the absence of significant metallic screening of charged molecular levels in the organic layer. Spin-orbit split states in BiAg2 turn out to be far more robust to organic overlayers than previously thought.

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Santamaría, José Miguel; Pajares, Eterio; Olsen, Vickie; Merino, Raquel; Eguíluz, Federico (eds.)

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Fecha: 29-9-1947 / Unidad de instalación: Carpeta 25 - Expediente 23-4 / Nº de pág.: 1 (mecanografiada)

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Fecha: 26-2-1985 / Unidad de instalación: Carpeta 48 - Expediente 7-8 / Nº de pág.: 4 (mecanografiadas)

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[ES] En este trabajo se pretende estudiar las consecuencias de la orientación al mercado sobre el rendimiento empresarial. En concreto se propone un modelo donde los efectos de la OM sobre la rentabilidad se manifiestan a través de otras variables mediadoras de resultados. La investigación empírica se realiza en el sector de la banca comercial española y se utiliza los modelos de ecuaciones estructurales para la contrastación de las hipótesis propuestas.

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1 carta (mecanografiada) ; 210x290mm. Ubicación: Caja 1 - Carpeta 5

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1 carta (mecanografiada) ; 162x224mm. Ubicación: Caja 1 - Carpeta 9

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7 cartas (mecanografiadas) ; entre 215x286mm y 157x215mm. Ubicación: Caja 1 - Carpeta 10