Depósito Digital de Documentos de la UAB Encontrados 342 registros  1 - 10siguientefinal  ir al registro: La búsqueda tardó 0.01 segundos. 
1.
17 p, 1.3 MB Robustness of behaviorally induced oscillations in epidemic models under a low rate of imported cases / Juher, David (Universitat de Girona. Departament d'Informàtica, Matemàtica Aplicada i Estadística) ; Rojas, David (Universitat de Girona. Departament d'Informàtica, Matemàtica Aplicada i Estadística) ; Saldaña, Joan (Universitat de Girona. Departament d'Informàtica, Matemàtica Aplicada i Estadística)
This paper is concerned with the robustness of the sustained oscillations predicted by an epidemic ODE model defined on contact networks. The model incorporates the spread of awareness among individuals and, moreover, a small inflow of imported cases. [...]
2020 - 10.1103/PhysRevE.102.052301
Physical Review E, Vol. 102, Issue 5 (November 2020) , art. 52301  
2.
12 p, 5.5 MB Mechanical softness of ferroelectric 180° domain walls / Stefani, Christina (Institut Català de Nanociència i Nanotecnologia) ; Ponet, Louis (Scuola Normale Superiore di Pisa) ; Shapovalov, Konstantin (Institut de Ciència de Materials de Barcelona) ; Chen, Peng (Italian Institute of Technology) ; Langenberg, Eric (Cornell University. Department of Materials Science and Engineering) ; Schlom, Darrell G. (Kavli Institute at Cornell for Nanoscale Science) ; Artyukhin, Sergey (Italian Institute of Technology) ; Stengel, Massimiliano (Institució Catalana de Recerca i Estudis Avançats) ; Domingo Marimon, Neus (Institut Català de Nanociència i Nanotecnologia) ; Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
Using scanning probe microscopy, we measure the out-of-plane mechanical response of ferroelectric 180° domain walls and observe that, despite separating domains that are mechanically identical, the walls appear mechanically distinct-softer-compared to the domains. [...]
2020 - 10.1103/PhysRevX.10.041001
Physical Review, Vol. 10, issue 4 (Oct.-Des. 2020) , art. 041001  
3.
6 p, 1.1 MB Transport fingerprints at graphene superlattice Dirac points induced by a boron nitride substrate / Martínez Gordillo, Rafael (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Ortmann, Frank (Institut Català de Nanociència i Nanotecnologia) ; Pruneda, Miguel (Institut Català de Nanociència i Nanotecnologia)
We report peculiar transport fingerprints at the secondary Dirac points created by the interaction between graphene and boron nitride layers. By performing ab initio calculations, the electronic characteristics of the moiré patterns produced by the interaction between layers are first shown to be in good agreement with experimental data, and further used to calibrate the tight-binding model implemented for the transport study. [...]
2014 - 10.1103/PhysRevB.89.161401
Physical review B : Condensed matter and materials physics, Vol. 89, issue 16 (April 2014) , art. 161401  
4.
12 p, 2.3 MB Multiple quantum phases in graphene with enhanced spin-orbit coupling : from the quantum spin hall regime to the spin hall effect and a robust metallic state / Cresti, Alessandro (IMEP-LAHC) ; Dinh, Van Tuan (Universitat Autònoma de Barcelona. Departament de Física) ; Soriano, David (Institut Català de Nanociència i Nanotecnologia) ; Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
We report an intriguing transition from the quantum spin Hall phase to the spin Hall effect upon segregation of thallium adatoms adsorbed onto a graphene surface. Landauer-Büttiker and Kubo-Greenwood simulations are used to access both edge and bulk transport physics in disordered thallium-functionalized graphene systems of realistic sizes. [...]
2014 - 10.1103/PhysRevLett.113.246603
Physical review letters, Vol. 113, issue 24 (Dec. 2014) , art. 246603  
5.
7 p, 981.7 KB Anisotropic behavior of quantum transport in graphene superlattices : coexistence of ballistic conduction with Anderson insulating regime / Pedersen, Jesper Goor (Institut Català de Nanociència i Nanotecnologia) ; Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
We report on the possibility to generate highly anisotropic quantum conductivity in disordered graphene-based superlattices. Our quantum simulations, based on an efficient real-space implementation of the Kubo-Greenwood formula, show that in disordered graphene superlattices the strength of multiple scattering phenomena can strongly depend on the transport measurement geometry. [...]
2014 - 10.1103/PhysRevB.89.165401
Physical review B : Condensed matter and materials physics, Vol. 89, issue 16 (April 2014) , art. 165401  
6.
6 p, 509.4 KB Spin-dependent electron scattering at graphene edges on Ni(111) / Garcia-Lekue, Aran (Donostia International Physics Center) ; Balashov, Timofey (Institut Català de Nanociència i Nanotecnologia) ; Olle, M. (Institut Català de Nanociència i Nanotecnologia) ; Ceballos, Gustavo (Institut Català de Nanociència i Nanotecnologia) ; Arnau Pino, Andrés (IKERBASQUE) ; Gambardella, Pietro (Institut Català de Nanociència i Nanotecnologia) ; Sanchez-Portal, Daniel (CSIC-UPV - Centro de Física de Materiales (CFM)) ; Mugarza, Aitor (Institut Català de Nanociència i Nanotecnologia)
We investigate the scattering of surface electrons by the edges of graphene islands grown on Ni(111). By combining local tunneling spectroscopy and ab initio electronic structure calculations we find that the hybridization between graphene and Ni states results in strongly reflecting graphene edges. [...]
2014 - 10.1103/PhysRevLett.112.066802
Physical review letters, Vol. 112, issue 6 (Feb. 2014) , art. 66802  
7.
12 p, 487.8 KB Fingerprints of inelastic transport at the surface of the topological insulator Bi 2 Se 3 : role of electron-phonon coupling / Costache, Marius Vasile (Institut Català de Nanociència i Nanotecnologia) ; Neumann, Ingmar (Institut Català de Nanociència i Nanotecnologia) ; Sierra, Juan F. (Institut Català de Nanociència i Nanotecnologia) ; Marinova, V. (Bulgarian Academy of Science. Institute of Optical Materials and Technologies) ; Gospodinov, M.M. (Bulgarian Academy of Sciences. Institute of Solid State Physics) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia)
We report on electric-field and temperature-dependent transport measurements in exfoliated thin crystals of the Bi2Se3 topological insulator. At low temperatures (<50 K) and when the chemical potential lies inside the bulk gap, the crystal resistivity is strongly temperature dependent, reflecting inelastic scattering due to the thermal activation of optical phonons. [...]
2014 - 10.1103/PhysRevLett.112.086601
Physical review letters, Vol. 112, issue 8 (Feb. 2014) , art. 86601  
8.
6 p, 979.5 KB Anomalous dissipation mechanism and Hall quantization limit in polycrystalline graphene grown by chemical vapor deposition / Lafont, F. (Laboratoire National de Métrologie et d'Essais) ; Ribeiro-Palau, Rebeca (Laboratoire National de Métrologie et d'Essais) ; Han, Z. (Institut polytechnique de Grenoble. Institut Néel) ; Cresti, Alessandro (Institut polytechnique de Grenoble. Institute of Microelectronics, Electromagnetism and Photonics) ; Delvallée, Alexandra (Laboratoire National de Métrologie et d'Essais) ; Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Bouchiat, Vincent (Institut polytechnique de Grenoble. Institut Néel) ; Ducourtieux, Sebastien (Laboratoire National de Métrologie et d'Essais) ; Schopfer, F. (Laboratoire National de Métrologie et d'Essais) ; Poirier, W. (Laboratoire National de Métrologie et d'Essais)
We report on the observation of strong backscattering of charge carriers in the quantum Hall regime of polycrystalline graphene, grown by chemical vapor deposition, which alters the accuracy of the Hall resistance quantization. [...]
2014 - 10.1103/PhysRevB.90.115422
Physical review B : Condensed matter and materials physics, Vol. 90, issue 11 (Sep. 2014) , art. 115422  
9.
40 p, 2.2 MB Fieldlike and antidamping spin-orbit torques in as-grown and annealed Ta/CoFeB/MgO layers / Avci, Can Onur (Institut Català de Nanociència i Nanotecnologia) ; Garello, Kevin (Institut Català de Nanociència i Nanotecnologia) ; Nistor, Corneliu (Institut Català de Nanociència i Nanotecnologia) ; Godey, Sylvie. (Institut Català de Nanociència i Nanotecnologia) ; Ballesteros, Belén (Institut Català de Nanociència i Nanotecnologia) ; Mugarza, Aitor (Institut Català de Nanociència i Nanotecnologia) ; Barla, Alessandro (Consiglio Nazionale Delle Ricerche. Istituto di Struttura della Materia) ; Valvidares, Manuel (ALBA Laboratori de Llum de Sincrotró) ; Pellegrin, Eric. (ALBA Laboratori de Llum de Sincrotró) ; Ghosh, Abhijit (ETH Zurich. Department of Materials) ; Miron, Ioan Mihai (SPINTEC) ; Boulle, Olivier (SPINTEC) ; Auffret, Stephane (SPINTEC) ; Gaudin, Gilles (SPINTEC) ; Gambardella, Pietro (Institut Català de Nanociència i Nanotecnologia)
We present a comprehensive study of the current-induced spin-orbit torques in perpendicularly magnetized Ta/CoFeB/MgO layers. The samples were annealed in steps up to 300 °C and characterized using x-ray-absorption spectroscopy, transmission electron microscopy, resistivity, and Hall effect measurements. [...]
2014 - 10.1103/PhysRevB.89.214419
Physical review B : Condensed matter and materials physics, Vol. 89, issue 21 (June 2014) , art. 214419  
10.
22 p, 1.1 MB Interdependence between training and magnetization reversal in granular Co-CoO exchange bias systems / Menéndez Dalmau, Enric (KU Leuven. Instituut voor Kern- en Stralingsfysica) ; Dias, T. (KU Leuven. Instituut voor Kern- en Stralingsfysica) ; Geshev, Julian (Instituto de Física, Universidade Federal Do Rio Grande Do sul (UFRGS)) ; López-Barbera, José Francisco (Institut Català de Nanociència i Nanotecnologia) ; Nogués, Josep (Institut Català de Nanociència i Nanotecnologia) ; Steitz, Roland (Helmholtz-Zentrum Berlin für Materialien und Energie GmbH) ; Kirby, Brian (Brian J.) (National Institute of Standards and Technology (Gaithersburg, Estats Units d'Amèrica)) ; Borchers, J.A. (National Institute of Standards and Technology (Gaithersburg, Estats Units d'Amèrica)) ; Pereira, L.M.C. (KU Leuven. Instituut voor Kern- en Stralingsfysica) ; Vantomme, André (KU Leuven, Instituut voor Kern- en Stralingsfysica) ; Temst, Kristiaan (KU Leuven, Instituut voor Kern- en Stralingsfysica)
The interdependence between training and magnetization reversal in granular Co-CoO exchange bias (EB) systems prepared by O ion implantation in Co thin films is demonstrated by polarized neutron reflectometry. [...]
2014 - 10.1103/PhysRevB.89.144407
Physical review B : Condensed matter and materials physics, Vol. 89, issue 14 (Sep. 2014) , art. 144407  

Depósito Digital de Documentos de la UAB : Encontrados 342 registros   1 - 10siguientefinal  ir al registro:
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