Dipòsit Digital de Documents de la UAB 13 registres trobats  1 - 10següent  anar al registre: La cerca s'ha fet en 0.00 segons. 
1.
7 p, 2.2 MB Nonlocal Spin Dynamics in the Crossover from Diffusive to Ballistic Transport / Vila Tusell, Marc (Institut Català de Nanociència i Nanotecnologia) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Cummings, Aron W. (Institut Català de Nanociència i Nanotecnologia) ; Power, Stephen R. (Institut Català de Nanociència i Nanotecnologia) ; Groth, Christoph W. (Université Grenoble Alpes) ; Waintal, Xavier (Université Grenoble Alpes) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
Improved fabrication techniques have enabled the possibility of ballistic transport and unprecedented spin manipulation in ultraclean graphene devices. Spin transport in graphene is typically probed in a nonlocal spin valve and is analyzed using spin diffusion theory, but this theory is not necessarily applicable when charge transport becomes ballistic or when the spin diffusion length is exceptionally long. [...]
2020 - 10.1103/PhysRevLett.124.196602
Physical review letters, Vol. 124, Issue 19 (May 2020) , art. 196602  
2.
13 p, 895.2 KB Charge and spin transport anisotropy in nanopatterned graphene / Gregersen, Søren Schou (Danmarks Tekniske Universitet. Center for Nanostructured Graphene) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Jauho, Antti-Pekka (Danmarks Tekniske Universitet. Center for Nanostructured Graphene) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Power, Stephen R. (Institut Català de Nanociència i Nanotecnologia)
Anisotropic electronic transport is a possible route towards nanoscale circuitry design, particularly in two-dimensional materials. Proposals to introduce such a feature in patterned graphene have to date relied on large-scale structural inhomogeneities. [...]
2018 - 10.1088/2515-7639/aadca3
Journal of physics: Materials, Vol. 1, Núm. 1 (September 2018) , art. 015005  
3.
15 p, 1.7 MB Deciphering the origin of nonlocal resistance in multiterminal graphene on hexagonal-boron-nitride with ab initio quantum transport : fermi surface edge currents rather than Fermi sea topological valley currents / Marmolejo Tejada, J.M. (University of Delaware. Department of Physics and Astronomy) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Petrović, M. D. (University of Delaware. Department of Mathematical Sciences) ; Chang, P-H (University of Nebraska Lincoln. Department of Physics and Astronomy) ; Sheng, X-L (University of Delaware. Department of Mathematical Sciences) ; Cresti, Alessandro (Université Grenoble Alpes) ; Plecháč, P. (University of Delaware. Department of Mathematical Sciences) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Nikolić, B.K. (University of Delaware. Department of Physics and Astronomy)
The recent observation (Gorbachev et al 2014 Science 346 448) of nonlocal resistance R NL near the Dirac point (DP) of multiterminal graphene on aligned hexagonal-boron nitride (G/hBN) has been interpreted as the consequence of topological valley Hall currents carried by the Fermi sea states just beneath the bulk gap E g induced by inversion symmetry breaking. [...]
2018 - 10.1088/2515-7639/aad585
Journal of physics: Materials, Vol. 1, Núm. 1 (September 2018) , art. 015006  
4.
8 p, 1.1 MB Shubnikov-de Haas oscillations in the anomalous Hall conductivity of Chern insulators / Canonico, Luis M. (Universidade Federal Fluminense) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Rappoport, Tatiana G. (Universidade Federal Do Rio de Janeiro) ; Ferreira, Aires (York University. Department of Physics) ; Muniz, R. B. (Universidade Federal Fluminense)
The Haldane model on a honeycomb lattice is a paradigmatic example of a system featuring quantized Hall conductivity in the absence of an external magnetic field, that is, a quantum anomalous Hall effect. [...]
2018 - 10.1103/PhysRevB.98.085409
Physical review B, Vol. 98, Issue 8 (August 2018) , art. 85409  
5.
17 p, 7.7 MB Spin transport in graphene/transition metal dichalcogenide heterostructures / Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Vila Tusell, Marc (Institut Català de Nanociència i Nanotecnologia) ; Cummings, Aron W. (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
Since its discovery, graphene has been a promising material for spintronics: its low spin-orbit coupling, negligible hyperfine interaction, and high electron mobility are obvious advantages for transporting spin information over long distances. [...]
2018 - 10.1039/c7cs00864c
Chemical Society Reviews, Vol. 47, Issue 9 (May 2018) , p. 3359-3379  
6.
35 p, 1.3 MB Room-temperature spin hall effect in graphene/MoS2 van der Waals heterostructures / Safeer, C.K. (CIC NanoGUNE) ; Ingla-Aynés, Josep (CIC NanoGUNE) ; Herling, Franz (CIC NanoGUNE) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Vila Tusell, Marc (Institut Català de Nanociència i Nanotecnologia) ; Ontoso, Nerea (CIC NanoGUNE) ; Calvo, M. Reyes (IKERBASQUE. Basque Foundation for Science) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Hueso, Luis E. (IKERBASQUE. Basque Foundation for Science) ; Casanova, Fèlix (IKERBASQUE. Basque Foundation for Science)
Graphene is an excellent material for long-distance spin transport but allows little spin manipulation. Transition-metal dichalcogenides imprint their strong spin-orbit coupling into graphene via the proximity effect, and it has been predicted that efficient spin-to-charge conversion due to spin Hall and Rashba-Edelstein effects could be achieved. [...]
2019 - 10.1021/acs.nanolett.8b04368
Nano letters, Vol. 19, Issue 2 (February 2019) , p. 1074-1082  
7.
11 p, 1.9 MB Quantum Hall effect in graphene with interface-induced spin-orbit coupling / Cysne, Tarik P. (Universidade Federal Do Rio de Janeiro) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Rocha, Alexandre Reily (Universidade Estadual Paulista (Brasil)) ; Rappoport, Tatiana G. (Universidade Federal Do Rio de Janeiro)
We consider an effective model for graphene with interface-induced spin-orbit coupling and calculate the quantum Hall effect in the low-energy limit. We perform a systematic analysis of the contribution of the different terms of the effective Hamiltonian to the quantum Hall effect (QHE). [...]
2018 - 10.1103/PhysRevB.97.085413
Physical review B, Vol. 97, Issue 8 (February 2018) , art. 85413  
8.
7 p, 2.0 MB Finite-size correction scheme for supercell calculations in Dirac-point two-dimensional materials / Rocha, Claudia Gomes da (Trinity College Dublin) ; Rocha, Alexandre Reily (Massachusetts Institute of Technology) ; Venezuela, P. (Universidade Federal Fluminense) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Ferreira, Mauro S. (Trinity College Dublin)
Modern electronic structure calculations are predominantly implemented within the super cell representation in which unit cells are periodically arranged in space. Even in the case of non-crystalline materials, defect-embedded unit cells are commonly used to describe doped structures. [...]
2018 - 10.1038/s41598-018-27632-6
Scientific reports, Vol. 8 (June 2018) , art. 9348  
9.
7 p, 4.6 MB Valley-polarized quantum transport generated by gauge fields in graphene / Settnes, Mikkel (Danmarks Tekniske Universitet. Department of Photonics Engineering) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
We report on the possibility to simultaneously generate in graphene a bulk valley-polarized dissipative transport and a quantum valley Hall effect by combining strain-induced gauge fields and real magnetic fields. [...]
2017 - 10.1088/2053-1583/aa7cbd
2D Materials, Vol. 4, issue 3 (September 2017) , art. 31006  
10.
81 p, 4.0 MB Charge, spin and valley Hall effects in disordered grapheme / Cresti, Alessandro (Université Grenoble Alpes) ; Nikolíc, B.K. (University of Delaware. Department of Physics and Astronomy) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
The discovery of the integer quantum Hall effect in the early eighties of the last century, with highly precise quantization values for the Hall conductance in multiples of e2/h, has been the first fascinating manifestation of the topological state of matter driven by magnetic field and disorder, and related to the formation of non-dissipative current flow. [...]
2016 - 10.1393/ncr/i2016-10130-6
Rivista del nuovo cimento, Vol. 39, issue 12 (December 2016) , p. 587-667  

Dipòsit Digital de Documents de la UAB : 13 registres trobats   1 - 10següent  anar al registre:
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