Dipòsit Digital de Documents de la UAB 114 registres trobats  1 - 10següentfinal  anar al registre: La cerca s'ha fet en 0.01 segons. 
1.
12 p, 1004.2 KB Spectroscopic properties of few-layer tin chalcogenides / Dewandre, Antoine (Université de Liège. Department of Physics) ; Verstraete, Matthieu J. (Université de Liège. Department of Physics) ; Grobert, Nicole (University of Oxford. Department of Materials) ; Zanolli, Zeila (Institut Català de Nanociència i Nanotecnologia)
Stable structures of layered SnS and SnSe and their associated electronic and vibrational spectra are predicted using first-principles DFT calculations. The calculations show that both materials undergo a phase transformation upon thinning whereby the in-plane lattice parameters ratio a/b converges towards 1, similar to the high-temperature behaviour observed for their bulk counterparts. [...]
2019 - 10.1088/2515-7639/ab3513
Journal of physics: Materials, Vol. 2, Núm. 4 (October 2019) , art. 044005  
2.
27 p, 4.8 MB Ultraviolet pulsed laser irradiation of multi-walled carbon nanotubes in nitrogen atmosphere / Pérez del Pino, Ángel (Institut de Ciència de Materials de Barcelona) ; Gyorgy, Eniko (Institut de Ciència de Materials de Barcelona) ; Cabana Jiménez, Laura (Institut de Ciència de Materials de Barcelona) ; Ballesteros, Belen (Institut Català de Nanociència i Nanotecnologia) ; Tobias, Gerard (Institut de Ciència de Materials de Barcelona)
Laser irradiation of randomly oriented multi-walled carbon nanotube (MWCNT) networks has been carried out using a pulsed Nd:YAG UV laser in nitrogen gas environment. The evolution of the MWCNT morphology and structure as a function of laser fluence and number of accumulated laser pulses has been studied using electron microscopies and Raman spectroscopy. [...]
2014 - 10.1063/1.4864776
Journal of applied physics, Vol. 115, issue 9 (March 2014) , art. 93501  
3.
11 p, 213.0 KB Physical model of the contact resistivity of metal-graphene junctions / Chaves Romero, Ferney Alveiro (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Jiménez Jiménez, David (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
While graphene-based technology shows great promise for a variety of electronic applications, including radio-frequency devices, the resistance of the metal-graphene contact is a technological bottleneck for the realization of viable graphene electronics. [...]
2014 - 10.1063/1.4874181
Journal of applied physics, Vol. 115, issue 16 (April 2014) , art. 164513  
4.
10 p, 5.1 MB Graphene spintronics : puzzling controversies and challenges for spin manipulation / Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia)
This article presents the current puzzling controversy between theory and experimental results concerning the mechanisms leading to spin relaxation in graphene-based materials. On the experimental side, it is surprising that regardless of the quality of the graphene monolayer, which is characterized by the carrier mobility, the typical Hanle precession measurements yield spin diffusion times in the order of which is several orders of magnitude below the theoretical estimates based on the expected low intrinsic spin-orbit coupling in graphene. [...]
2014 - 10.1088/0022-3727/47/9/094011
Journal of Physics D: Applied Physics, Vol. 47 issue 9 (March 2014) , art. 94011  
5.
30 p, 6.7 MB Siesta : recent developments and applications / García, Alberto (Institut de Ciència de Materials de Barcelona) ; Papior, Nick (Technical University of Denmark) ; Akhtar, Arsalan (Institut Català de Nanociència i Nanotecnologia) ; Artacho, Emilio (CIC Nanogune BRTA) ; Blum, Volker (Duke University) ; Bosoni, Emanuele (Institut de Ciència de Materials de Barcelona) ; Brandimarte, Pedro (Donostia International Physics Center) ; Brandbyge, M. (Technical University of Denmark) ; Cerdá, J.I. (Instituto de Ciencia de Materiales de Madrid) ; Corsetti, F. (CIC Nanogune BRTA) ; Cuadrado, Ramón (Institut Català de Nanociència i Nanotecnologia) ; Dikan, Vladimir (Institut de Ciència de Materials de Barcelona) ; Ferrer, J. (Universidad de Oviedo) ; Gale, J. (Curtin University) ; García-Fernández, P. (Universidad de Cantabria) ; García-Suárez, V.M. (Universidad de Oviedo) ; García, Sandra (Institut Català de Nanociència i Nanotecnologia) ; Huhs, G. (Barcelona Supercomputing Center) ; Illera Sergio (Institut Català de Nanociència i Nanotecnologia) ; Korytár, R. (Charles University) ; Koval, P. (Tolosa Hiribidea) ; Lebedeva, I. (CIC Nanogune BRTA) ; Lin, L. (University of California) ; López-Tarifa, P. (Centro de Física de Materiales) ; Mayo, S.G. (Departamento de Física de la Materia Condensada) ; Mohr, S. (Barcelona Supercomputing Center) ; Ordejón Rontomé, Pablo (Institut Català de Nanociència i Nanotecnologia) ; Postnikov, A. (LCP-A2MC) ; Pouillon, Y. (Universidad de Cantabria) ; Pruneda, Miguel (Institut Català de Nanociència i Nanotecnologia) ; Robles, R. (Centro de Física de Materiales. Centro Mixto) ; Sánchez Portal, Daniel (Donostia International Physics Center) ; Soler Torroja, José M. (Departamento de Física de la Materia Condensada) ; Ullah, R. (CIC Nanogune BRTA) ; Yu, V.W.Z. (Duke University) ; Junquera, J. (Universidad de Cantabria)
A review of the present status, recent enhancements, and applicability of the Siesta program is presented. Since its debut in the mid-1990s, Siesta's flexibility, efficiency, and free distribution have given advanced materials simulation capabilities to many groups worldwide. [...]
2020 - 10.1063/5.0005077
Journal of chemical physics, Vol. 152, Issue 20 (May 2020) , art. 204108  
6.
27 p, 1.9 MB ABINIT : overview and focus on selected capabilities / Romero, Aldo H. (West Virginia University. Physics and Astronomy Department) ; Allan, D.C. (Corning Incorporated) ; Amadon, B. (CEA DAM-DIF) ; Antonius, G. (U. du Québec À Trois-Rivières) ; Applencourt, T. (CEA DAM-DIF) ; Baguet, L. (Sorbonne Université) ; Bieder, J. (Université de Liège) ; Bottin, F. (CEA DAM-DIF) ; Bouchet, J. (CEA DAM-DIF) ; Bousquet, E. (Université de Liège) ; Bruneval, F. (Université Paris-Saclay) ; Brunin, G. (Institute of Condensed Matter and Nanoscience. UCLouvain) ; Caliste, D. (University Grenoble Alpes) ; Côté, M. (U. de Montréal) ; Denier, J. (CEA DAM-DIF) ; Dreyer, C. (Center for Computational Quantum Physics. Flatiron Institute) ; Ghosez, P. (Université de Liège) ; Giantomassi, M. (European Theoretical Spectroscopy Facility) ; Gillet, Y. (Institute of Condensed Matter and Nanoscience. UCLouvain) ; Gingras, O. (U. de Montréal) ; Hamann, D.R. (Mat-Sim Research LLC) ; Hautier, G. (Institute of Condensed Matter and Nanoscience. UCLouvain) ; Jollet, F. (CEA DAM-DIF) ; Jomard, G. (CEA. DEN. DEC) ; Martin, A. (Université de Liège) ; Miranda, H.P.C. (Institute of Condensed Matter and Nanoscience. UCLouvain) ; Naccarato, F. (Institute of Condensed Matter and Nanoscience. UCLouvain) ; Petretto, G. (Institute of Condensed Matter and Nanoscience. UCLouvain) ; Pike, N.A. (Université de Liège) ; Planes, V. (CEA DAM-DIF) ; Prokhorenko, S. (Université de Liège) ; Rangel, T. (CEA DAM-DIF) ; Ricci, F. (Université de Liège) ; Rignanese, G.M. (European Theoretical Spectroscopy Facility) ; Royo, Miquel (Institut de Ciència de Materials de Barcelona) ; Stengel, Massimiliano (Institut de Ciència de Materials de Barcelona) ; Torrent, Marc (CEA DAM-DIF) ; Van Setten, M.J. (IMEC) ; Van Troeye, B. (Rensselaer Polytechnic Institute) ; Verstraete, Matthieu J. (Institut Català de Nanociència i Nanotecnologia) ; Wiktor, J. (Chalmers University of Technology) ; Zwanziger, J.W. (Dalhousie Univeristy) ; Gonze, X. (Skolkovo Institute of Science and Technology)
ABINIT is probably the first electronic-structure package to have been released under an open-source license about 20 years ago. It implements density functional theory, density-functional perturbation theory (DFPT), many-body perturbation theory (GW approximation and Bethe-Salpeter equation), and more specific or advanced formalisms, such as dynamical mean-field theory (DMFT) and the "temperature-dependent effective potential" approach for anharmonic effects. [...]
2020 - 10.1063/1.5144261
Journal of chemical physics, Vol. 152, Issue 12 (March 2020) , art. 124102  
7.
12 p, 10.9 MB Unfolding method for periodic twisted systems with commensurate Moiré patterns / Sánchez Ochoa, F. (Universidad Nacional Autónoma de México) ; Hidalgo, Francisco (Institut Català de Nanociència i Nanotecnologia) ; Pruneda, Miguel (Institut Català de Nanociència i Nanotecnologia) ; Noguez, Cecilia (Universidad Nacional Autónoma de México)
We present a general unfolding method for the electronic bands of systems with double-periodicity. Within density functional theory with atomic orbitals as basis-set, our method takes into account two symmetry operations of the primitive cell: a standard expansion and a single rotation, letting to elucidate the physical effects associated to the mutual interactions between systems with more than one periodicity. [...]
2020 - 10.1088/1361-648X/ab44f0
Journal of Physics Condensed Matter, Vol. 32, Núm. 2 (January 2020) , art. 25501  
8.
On the global dynamics of a three-dimensional forced-damped differential system / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Martínez Mancilla, Yohanna Paulina (Centre de Recerca Matemàtica) ; Valls, Clàudia 1973- (Universidade Técnica de Lisboa. Instituto Superior Técnico. Departamento de Matemática (Portugal))
In this paper by using the Poincaré compactification of ℝ³ we make a global analysis of the model xʹ = ax + y + yz, yʹ = x - ay + bxz, zʹ = cz - bxy. In particular we give the complete description of its dynamics on the infinity sphere. [...]
2020 - 10.1080/14029251.2020.1757232
Journal of Nonlinear Mathematical Physics, Vol. 27, Issue 3 (May 2020) , p. 414-428  
9.
Global dynamics of a Lotka-Volterra system in ℝ³ / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Martínez Mancilla, Yohanna Paulina (Centre de Recerca Matemàtica) ; Valls, Clàudia 1973- (Universidade de Lisboa. Instituto Superior Técnico. Departamento de Matemàtica (Portugal))
In this work we consider the Lotka-Volterra system in R³ x˙ = −x(x − y − z), y˙ = −y(−x + y − z), z˙ = −z(−x − y + z), introduced recently in [7], and studied also in [8] and [14]. [...]
2020 - 10.1080/14029251.2020.1757240
Journal of Nonlinear Mathematical Physics, Vol. 27, Issue 3 (May 2020) , p. 509-519  
10.
12 p, 926.4 KB On the periodic orbits of Hamiltonian systems / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Rodrigues, Ana (Universidade do Porto. Centro de Matemática (Portugal))
We show how to apply to Hamiltonian differential systems recent results for studying the periodic orbits of a differential system using the averaging theory. We have chosen two classical integrable Hamiltonian systems, one with the Hooke potential and the other with the Kepler potential, and we study the periodic orbits which bifurcate from the periodic orbits of these integrable systems, first perturbing the Hooke Hamiltonian with a nonautonomous potential, and second perturbing the Kepler problem with an autonomous potential.
2010 - 10.1063/1.3387343
Journal of Mathematical Physics, Vol. 51, Issue 4 (April 2010) , art. 042704  

Dipòsit Digital de Documents de la UAB : 114 registres trobats   1 - 10següentfinal  anar al registre:
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