Relevant bibliographies by topics / Energies surface anisotropie

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Energies surface anisotropie'

Author: Grafiati
Published: 1 June 2024
Last updated: 31 July 2025

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Journal articles on the topic "Energies surface anisotropie"

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Vidyasagar, A., S. Krödel, and D. M. Kochmann. "Microstructural patterns with tunable mechanical anisotropy obtained by simulating anisotropic spinodal decomposition." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 474, no. 2218 (2018): 20180535. http://dx.doi.org/10.1098/rspa.2018.0535.

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The generation of mechanical metamaterials with tailored effective properties through carefully engineered microstructures requires avenues to predict optimal microstructural architectures. Phase separation in heterogeneous systems naturally produces complex microstructural patterns whose effective response depends on the underlying process of spinodal decomposition. During this process, anisotropy may arise due to advection, diffusive chemical gradients or crystallographic interface energy, leading to anisotropic patterns with strongly directional effective properties. We explore the link bet
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SCHMIDT, W. G., J. L. FATTEBERT, J. BERNHOLC, and F. BECHSTEDT. "SELF-ENERGY EFFECTS IN THE OPTICAL ANISOTROPY OF GaP(001)." Surface Review and Letters 06, no. 06 (1999): 1159–65. http://dx.doi.org/10.1142/s0218625x99001281.

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We calculate the reflectance anisotropy for GaP(001)(2×4) surfaces using a real-space multigrid method and ab initio pseudopotentials. Our results obtained within DFT-LDA show good qualitative agreement with recent experiments. This holds in particular for the stoichiometric trends. A strong negative anisotropy at low photon energies is linked to the formation of Ga–Ga bonds along the [110] direction. There are discrepancies, however, with respect to the line shape and the energetic positions of characteristic peaks. Substantial improvement is achieved by using a numerically efficient GW appro
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HE, L., Y. W. LIU, W. J. TONG, J. G. LIN, and X. F. WANG. "SURFACE ENERGY ENGINEERING OF Cu SURFACE BY STRAIN: FIRST-PRINCIPLES CALCULATIONS." Surface Review and Letters 20, no. 06 (2013): 1350054. http://dx.doi.org/10.1142/s0218625x13500546.

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Surface energies of strained Cu surfaces were studied systematically using first-principles methods. Results showed that the strain-stabilization of Cu surface was anisotropic and strongly related to the strain distribution. This strain-induced approach could be used as an effective way to engineer the surface energies of metals.
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Kido, Eiji. "Current status of the TAx4 surface detectors." EPJ Web of Conferences 283 (2023): 06003. http://dx.doi.org/10.1051/epjconf/202328306003.

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Telescope Array (TA) is the largest ultrahigh-energy cosmic-ray (UHECR) observatory in the northern hemisphere. It explores the origin of UHECRs using a surface detector (SD) array, covering approximately 700 km2, and a fluorescence detector (FD) stations viewing the skies above the array. TA has found evidence for a cluster of cosmic rays with energies greater than 57 EeV known as a HotSpot. Recently, TA has obtained additional evidence for an excess of cosmic rays with energies above 1019.4 eV and also found implications of spectrum anisotropy. An expanded SD array and FD stations called TAx
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Filimonov, Sergey N. "Ab Initio Calculations of Absolute Surface Energies of Clean and Hydrogen Covered 3C-SiC(001), (110) and (111) Surfaces." Materials Science Forum 821-823 (June 2015): 363–66. http://dx.doi.org/10.4028/www.scientific.net/msf.821-823.363.

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The absolute surface energies of three major low index surfaces of cubic silicon carbide (3C-SiC) are determined by first-principles density functional theory calculations. Calculations show that among clean 3C-SiC surfaces the Si-terminated 3C-SiC(001)-(3x2) surface has the lowest energy. The second and third lowest energy surfaces are the Si-terminated 3C-SiC(111)-(√3x√3) surface and the nonreconstructed 3C-SiC(110) surface. Hydrogen passivation greatly reduces both the absolute surface energies of the low index 3C-SiC surfaces and the surface energy anisotropy. In particular, the surface en
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Семина, М. А., А. А. Головатенко, Т. В. Шубина та А. В. Родина. "Локализация носителей в квантовых точках с одноосной анизотропией формы и состава". Физика твердого тела 61, № 4 (2019): 636. http://dx.doi.org/10.21883/ftt.2019.04.47405.335.

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AbstractThe electronic and hole states in quantum dots (QD) of cubic II–VI semiconductors with a spheroidal shape and uniaxial anisotropy have been studied theoretically. The smooth potential energy profiles simulated by the Gauss function in all three spatial directions are considered. The energy level lowering and the energy splitting of the hole state from the valence band top Γ_8 by momentum 3/2 into the states with projections ±3/2, ±1/2 on the anisotropy axis are analyzed. The QD anisotropies of three types are considered: the QD size anisotropy, the QD potential barrier anisotropy, and
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Palmer, Bennett. "Stable closed equilibria for anisotropic surface energies: Surfaces with edges." Journal of Geometric Mechanics 4, no. 1 (2012): 89–97. http://dx.doi.org/10.3934/jgm.2012.4.89.

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Suomijärvi, T. "The AugerPrime upgrade of the Pierre Auger Observatory." Journal of Physics: Conference Series 2429, no. 1 (2023): 012010. http://dx.doi.org/10.1088/1742-6596/2429/1/012010.

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Abstract Operating since 2004, the Pierre Auger Observatory has yielded several important results. The suppression of the flux around 5×1019 eV is now confirmed without any doubt, a large-scale dipole anisotropy has been found for energies above 8×1018 eV, as well as an indication for some intermediate-scale anisotropy at the highest energies. Furthermore, strong limits have been placed on ultra-high-energy photons and neutrinos. In order to elucidate the origin of the flux suppression at the highest energies and search for composition-enhanced anisotropies, the Auger Collaboration is currentl
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Elsey, Matt, and Selim Esedoḡlu. "Threshold dynamics for anisotropic surface energies." Mathematics of Computation 87, no. 312 (2017): 1721–56. http://dx.doi.org/10.1090/mcom/3268.

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Zhang, Jin, and Peter W. Voorhees. "Effect of Anisotropy on Lithium Dendrite Growth." ECS Meeting Abstracts MA2024-01, no. 2 (2024): 406. http://dx.doi.org/10.1149/ma2024-012406mtgabs.

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Lithium dendrite formation is one of the leading causes of performance degradation and safety hazards in lithium batteries. Understanding dendrite evolution and its morphology during cycling can provide the critical insight into improving battery performance and safety. Recent experimental studies with cryo-electron microscopy have revealed anisotropic morphologies of lithium metal during deposition. Lithium, being a crystalline material, exhibits different surface energies and reaction rates depending on the crystal surfaces. In this study, we apply a quantitative electrochemical phase-field
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Dissertations / Theses on the topic "Energies surface anisotropie"

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Zhai, Xinyuan. "Crack propagation in elastic media with anisotropic fracture toughness : experiments and numerical modeling." Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAE010.

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La fabrication additive attire une attention croissante en raison de ses avantages en termes de flexibilité de modélisation et de facilité de conception de microstructures complexes. Nous avons constaté qu'en manipulant la stratégie d'impression, les échantillons imprimés par dépôt de fusion de polycarbonate peuvent présenter un comportement fortement anisotrope en termes de résistance à la rupture, tout en conservant des propriétés isotropes en termes d'élasticité.Le focus de cette thèse est d'explorer le comportement en matière de rupture dans des milieux élastiques isotropes présentant une
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Mekhiche, Mouhoub. "Introduction de la texture cubique {100}<001> dans les dispositifs électrotechniques : de la métallurgie à la modélisation." Grenoble INPG, 1995. http://www.theses.fr/1995INPG0019.

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La principale plage de progression des performances magnétiques des aciers magnétiques FeSi est à l'heure actuelle la texture de ces matériaux. Il est alors important de savoir évaluer l'intérêt de telle ou telle texture pour l'électrotechnique, afin de connaître les marges de progrès existant encore dans la conception de différents dispositifs et d'estimer par là même s'il est intéressant ou non de mettre au point métallurgiquement telle texture. Le travail présenté a pour ambition de mettre en place un tel outil intégré d'étude et d'évaluation d'une texture, relativement aux contraintes du g
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Gottlieb, Ulrich. "Quelques propriétés physiques intrinsèques des siliciures métalliques et semiconducteurs." Grenoble INPG, 1994. http://www.theses.fr/1994INPG0008.

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Dans la premiere partie nous decrivons la mise au point d'une experience de mesures de transport a basses temperatures. Nous avons construit un dispositif experimental qui permet de piloter la rotation de l'echantillon a basse temperature sous fort champ magnetique a partir de l'exterieur du cryostat. La deuxieme partie de la these est consacree a l'etude systematique des siliciures isostructuraux et isoelectroniques vsi#2, nbsi#2 et tasi#2. Les echantillons sont monocristallins. Les trois composes sont metalliques et leur resistivite a haute temperature est anisotrope. Des mesures de magnetor
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Favretto-Cristini, Nathalie. "Interaction ondes/interfaces en contexte sismique." Habilitation à diriger des recherches, Université de la Méditerranée - Aix-Marseille II, 2011. http://tel.archives-ouvertes.fr/tel-00598344.

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Certains besoins économiques, sociétaux ou environnementaux nécessitent une caractérisation approfondie des structures géologiques du sous-sol. Parmi les différentes méthodes géophysiques, la sismique est sans doute celle qui est le plus souvent privilégiée. Imager et caractériser le sous-sol à partir de données réelles acquises sur le terrain est cependant un problème inverse généralement di fficile à résoudre. Il l'est d'autant plus si le problème direct associé n'a pas été au préalable "maîtrisé" a minima, c'est-à-dire si l'on ne dispose pas d'une modélisation réaliste de la propagation des
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Liscio, Fabiola. "Nanostructures magnetiques auto-assemblees sur des surfaces a faible energie par epitaxie par jets moleculaires." Phd thesis, 2009. http://tel.archives-ouvertes.fr/tel-00391031.

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Les nanostructures d'alliages MxPt1x (M=Co et Fe) developpent des anisotropies magnetiques perpendiculaires, très interessantes pour des applications dans le domaine de l'enregistrement a haute densite. Dans ce travail de these, la nature du substrat (structure, symetrie et energie de surface) et l'in uence de la temperature de co-deposition sur les proprietes structurales et magnetiques des nanostructures ont ete etudies. La methode a consiste a deposer des atomes de metaux de transition par epitaxie a jets moleculaires sur les surfaces WSe2(001) et NaCl(001) de faible energie. Elle a conduit
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Baer, Eric Theles. "Symmetry properties of crystals and new bounds from below on the temperature in compressible fluid dynamics." Thesis, 2012. http://hdl.handle.net/2152/ETD-UT-2012-08-5999.

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In this thesis we collect the study of two problems in the Calculus of Variations and Partial Differential Equations. Our first group of results concern the analysis of minimizers in a variational model describing the shape of liquid drops and crystals under the influence of gravity, resting on a horizontal surface. Making use of anisotropic symmetrization techniques and an analysis of fine properties of minimizers within the class of sets of finite perimeter, we establish existence, convexity and symmetry of minimizers. In the case of smooth surface tensions, we obtain uniqueness of minimi
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Book chapters on the topic "Energies surface anisotropie"

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Handa, S. "Technology of reactive ion etching." In Plasma Etching Fundamentals and Applications. Oxford University PressOxford, 1998. http://dx.doi.org/10.1093/oso/9780198562870.003.0005.

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Abstract The original meaning of ‘etching’ is ‘to eat’; the process of removing something from an object. Moreover, it is impressive that another original meaning of it is ‘to feed’. In fact, reactive ion etching (RIE) consists of two processes; ‘to eat’ and ‘to feed’. The physical process of etching is to remove particles from a solid surface by the colliding energy of ions which is converted into thermal, chemical, or kinetic energy. The mechanisms of etching can be classified by forms of energy exchange: chemical and physical. The etched pattern can be classified into two types: anisotropic
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Coker, D. F., and R. O. Watts. "Diffusion Monte Carlo simulation of condensed systems." In Quantum Monte Carlo. Oxford University PressNew York, NY, 2007. http://dx.doi.org/10.1093/oso/9780195310108.003.0051.

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Abstract This paper reports diffusion quantum Monte Carlo calculations for condensed systems, in this case for liquid 4He and for solid molecular H2. Calculations for liquid He made earlier by Whitlock et al.a using Green’s function QMC for the same potential energy surface allowed a comparison of results for this system. Coker and Watts used spherical pair potentials derived from scattering experiments for both systems, along with Axilrod-Teller-Muto three body terms. The calculations were performed with importance sampling, using a simple product of pair functions as a trial function for hel
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Conference papers on the topic "Energies surface anisotropie"

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Bucklen, B., M. Wettergreen, M. Heinkenschloss, and M. A. K. Liebschner. "Surface-Based Scaffold Design: A Mechanobiological Approach." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-81985.

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Despite recent need-based advances in orthopedic scaffold design, current implants are unsuitable as “total” scaffold replacements. Both mechanical requirements of stiffness/strength and biological stipulations dictating cellular behavior (attachment, differentiation) should be included. The amount of mechanical stimulation in the form of stresses, strains, and energies most suitable toward implant design is presently unknown. Additionally unknown is if whole-bone optimization goals such as uniform and non-uniform driving forces are applicable to a scaffold-bone interface. At the very least, s
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Zhao, Xinglong, Joa˜o Quinta da Fonseca, Andrew Sherry, and David Lidbury. "Grain-Scale Heterogeneity Effect on Mechanistic Modelling of Cleavage Fracture of a Ferritic RPV Steel Forging Material." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61569.

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Improving brittle fracture prediction is crucial for structural integrity assessment. In current safety assessments, fracture mechanics treats polycrystalline steels as homogeneous continua. In reality, deformation of structural steels is heterogeneous. Part of this heterogeneity is due to the elastic and plastic anisotropy of their constituent (often randomly orientated) grains. This paper will compare the predicted failure stresses from tensile tests performed on a ferritic pressure vessel steel using the crystal plasticity finite element approach alongside measured carbide distribution and
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