Light-matter interaction in polar and strongly correlated oxides [PDF]
Les interaccions entre llum i matèria són omnipresents en la natura i tenen un paper crucial en l'enteniment del funcionament de l'univers. En el context de la física dels estats sòlids, aquestes interaccions són essencials tant per analitzar les ...
Ganguly, Saptam
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Role of electron-electron interactions in chiral 2DEGs [PDF]
textIn this thesis we study the effect of electron-electron interactions on Chiral two-dimensional electron gas (C2DEGs). C2DEGs are a very good description of the low-energy electronic properties of single layer and multilayer graphene systems.
Barlas, Yafis
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Quantum wire networks with local Z2 symmetry [PDF]
16 pages, 9 figures, v.2 section IV D added,accepted for publication in PRBFor a large class of networks made of connected loops, in the presence of an external magnetic field of half flux quantum per loop, we show the existence of a large local symmetry
Kazymyrenko, K. +2 more
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Reversing the sign of current-current correlations [PDF]
Current-correlations are a very sensitive probe of the fluctuations of small conductors. For non-interacting particles injected from thermal sources there is a simple connection between the sign of correlations and statistics: current-current ...
Buttiker, Markus
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Electrical, spectral and thermal analysis of yellow luminescent dots in InGaN green LEDs [PDF]
With this paper we present an extensive analysis of localized emission process that occur at low current densities in InGaN/GaN LEDs. The study was carried out by means of spatially resolved EL measurements performed at different temperatures and ...
VACCARI, SIMONE +6 more
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Electron energy-loss spectroscopy: DFT modelling and application to experiment [PDF]
The all-electron density functional theory (DFT) code Wien2k has an established track record of modelling energy-loss near-edge structure (ELNES). The pseudopotential DFT code CASTEP can reproduce results found using Wien2k.
Seabourne, Che Royce
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Analysis of the crystalline structures of materials CuF2 and AgF2 materials using first principle simulations [PDF]
RESUMEN: Para entender las propiedades de los materiales sólidos, el primer paso consiste en analizar su estructura cristalina en condiciones ambiente.
Moreno Ceballos, Jorge
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Study of thermoelectric properties in nanostructured systems: possible conditions to optimize efficiency [PDF]
ilustraciones, graficasEl presente trabajo estudia y extiende, mediante argumentos de universalidad, el comportamiento térmico dentro del régimen Kondo, de las distintas propiedades termoeléctricas tales como: La termopotencia, la conductancia eléctrica
Aranguren Quintero, Daniel Felipe
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Study the effect of quenched disorder on the physical properties of manganites and study of the magnetocaloric effect metal alloys compound MnBi [PDF]
Le manuscrit présente des travaux relatifs à la caractérisation structurale, électrique et magnétique des matériaux manganites poly-cristallin, les manganites qui présentent un intérêt industriel croissant compte tenu de ses nombreux domaines d ...
Issaoui, Fatma
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Wigner crystallization of negatively charged exciton in a disconnected one-dimensional structure [PDF]
Se analiza una transición desde un estado gaseoso a otro con una correlación fuerte en un sistema de tres partículas, dos electrones separados en anillos unidimensionales, verticalmente apilados y un hueco dentro de un hilo unidimensional.
Marín, J.H., García, L.F., Piña, J.C.
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