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Academic literature on the topic 'Croissance d'interfaces'
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Journal articles on the topic "Croissance d'interfaces"
Rudolf, P., G. Gensterblum, and R. Caudano. "Croissance et caractérisation d'interfaces de fullerènes sur substrats métalliques et semiconducteurs." Le Journal de Physique IV 07, no. C6 (December 1997): C6–137—C6–149. http://dx.doi.org/10.1051/jp4:1997612.
Full textDissertations / Theses on the topic "Croissance d'interfaces"
Rambeau, Joachim. "Statistiques d'extrêmes d'interfaces en croissance." Phd thesis, Université Paris Sud - Paris XI, 2011. http://tel.archives-ouvertes.fr/tel-00648731.
Full textANTOINE, ANNE-MARIE. "Mecanismes de croissance et de constitution d'interfaces dans les couches minces de semiconducteurs amorphes hydrogenes etudies par ellipsometrie spectroscopique in situ." Paris 7, 1987. http://www.theses.fr/1987PA077179.
Full textPlapp, Mathis. "Etude de la dynamique microscopique de quelques modeles de gaz sur reseau en approximation de champ moyen : dynamique d'interfaces, croissance dendritique et decomposition spinodale." Paris 11, 1997. http://www.theses.fr/1997PA112205.
Full textDelage, Thierry. "Optimisation du dépôt de films minces de BSTO et de tricouches YBCO/BSTO/YBCO : phénomènes de croissance et d'interfaces, application à la réalisation de composants hyperfréquences accordables." Limoges, 2003. http://aurore.unilim.fr/theses/nxfile/default/d1de461a-c852-41f8-9b5d-b50f1be423d1/blobholder:0/2003LIMO0048.pdf.
Full textThis work deals with the study of thin BaxSr1-xTiO3 (BSTO), bilayers BSTO/Y1Ba2Cu307-d (YBCO) and trilayers YBCO/BSTO/YBCO films deposited by pulsed laser deposition (PLD) on MgO single crystal substrate. It's divided in four principal parts. The first chapter recalls the essential concepts about capacitors and ferroelectric materials. The second chapter describes experimental devices and processes concerning massive target realization, layers elaboration and characterizations are particularly performed by in situ RHEED system. In the third chapter, the crystallographic and the dielectric properties of the BSTO thin film deposited on MgO single crystal are correlated with deposition parameters (temperature, oxygen pressure, thickness). As example, the control of stress at film/substrate interface leads to 900 nm mono-oriented (00l) BSTO layers with dielectric constant of about 2000 at 12. 5 GHz. In the last chapter, we present the insertion of BSTO thin films in radiofrequency microsystems (Multilayers with two BSTO compositions x = 0. 67 and x = 0. 1). YBCO/BSTO/YBCO trilayers are realized in order to work at liquid nitrogen temperature (77 K). Finally, amorphous BSTO and alumina thin films are used in microwave devices (MEMS MicroElectroMechanical System)
Ocampo, Juan. "Etude des phénomènes d'interface dans la glace adsorption, croissance des clathrates et désordre protonique /." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37617142g.
Full textNzoghe, Mendome Lény Ebothe Jean. "Surfaces nanostructurées de nickel électrodéposé sur divers substrats: Etude de la croissance d'interface et des caractéristiques magnétiques." Reims : S.C.D. de l'Université, 2007. http://scdurca.univ-reims.fr/exl-doc/GED00000562.pdf.
Full textNzoghe, Mendome Lény. "Surfaces nanostructurées de nickel électrodéposé sur divers substrats: Etude de la croissance d'interface et des caractéristiques magnétiques." Reims, 2007. http://theses.univ-reims.fr/exl-doc/GED00000562.pdf.
Full textThe role of surface irregularities on material thin films is enhanced while decreasing their thickness value. However, the dependence of their formation on the chemical nature of the film deposition substrate is not sufficiently investigated. This dependence becomes of prime interest in modern application fields associated with the intensive miniaturization trend. Nickel electrodeposits exhibit several morphologies according to the experimental setup and the substrate. Thus, the atomic force microscopy enabled us to study morphologies (qualitative aspect) and topographies (quantitative aspect) of nanostructured nickel thin films of nickel worked out by Chronoamperometry and cyclic Voltametry through statistical parameters such as root mean square roughness (RMS) and the nickel grains mean diameter, which respectively give vertical and horizontal information about surface’s topography. Through these parameters, we could, on the one hand, point out the changes of the surface topography according to the experimental setup (current density and scanning rate during cycling) and on the other hand, study the fractality (dynamic study lead according to the Family-Viscek law) and the growth mode (analytical study through the KPZ equation) exhibited by the nanostructured thin nickel films on the substrates used in this work. In addition, we showed that the macroscopic ferromagnetic properties (coercitive and saturation fields, remanent magnetization) of these thin nanostructured nickel films were influenced both by their thickness (voluminal contribution) and their topography (surface contribution) according to the root mean square roughness RMS and the grains size. In the same way, topography has a deep impact on both magnetization reversal process and local magnetic configuration of nanostructured nickel thin films. Indeed, their domain walls show structures evolving, according to both the substrate and experimental setup, with the thickness, the roughness and the nickel grains size
Palmino, F. "Etudes d'interfaces terre rare/semi-conducteur et réalisation de croissances nanostructurées: Er/Si, Sm/Si et Pb/Sm-Si." Habilitation à diriger des recherches, Université de Franche-Comté, 2003. http://tel.archives-ouvertes.fr/tel-00091968.
Full textGallinato, Contino Olivier. "Modélisation de processus cancéreux et méthodes superconvergentes de résolution de problèmes d'interface sur grille cartésienne." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0257/document.
Full textIn this thesis, we present a study about phenomena of tumor invasion, at the tissues and cell scales.The first part is devoted to two continuous mathematical models. The first one is a macroscopic model for breast cancer growth, which focuses on the transition between the stage in situ and the invasive phase of growth. This model is based on advection equations for cellular species. The geometry and possible tissue damage are taken into account. Invasion occurs when the tumor cells produce proteolytic enzymes. The second model deals with the phenomenon of invadopodia, at the cell scale.This is a free boundary problem, which describes the change in morphology of pre-metastatic cells,enabling them to degrade the tissues and migrate into the rest of the body. Each of these models reflects the strong coupling of biological phenomena.The second part is devoted to numerical methods specifically developed to solve these problems and overcome coupling and nonlinearities. They are built on uniform Cartesian grids, thanks to the finite difference method, and a stabilized version of the Ghost fluid method. Their peculiarity is to take full advantage of superconvergence properties of the Poisson problem solution. These properties are specifically studied, leading to the first or second order numerical computation of the problems ofbreast cancer and invadopodia, depending on the desired accuracy. These methods can also be used to solve other free boundary problems
Hébert, Clément. "Matrices de microélectrodes tout diamant et composite diamant / nanotubes de carbone pour la neurophysiologie : du matériau aux composants d'interface." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00805627.
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