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Articles 34 registres trobats  anterior11 - 20següentfinal  anar al registre: La cerca s'ha fet en 0.00 segons. 
11.
47 p, 1.9 MB Charge transport in polycrystalline graphene : challenges and opportunities / Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Duong, Dinh Loc (Sungkyunkwan University. Institute for Basic Science) ; Nguyen, Van Luan (Sungkyunkwan University. Department of Energy Science) ; Dinh, Van Tuan (Institut Català de Nanociència i Nanotecnologia) ; Kotakoski, Jani (University of Helsinki. Department of Physics) ; Barrios Vargas, José Eduardo (Institut Català de Nanociència i Nanotecnologia) ; Lee, Young Hee (Sungkyunkwan University. Institute for Basic Science) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
Graphene has attracted significant interest both for exploring fundamental science and for a wide range of technological applications. Chemical vapor deposition (CVD) is currently the only working approach to grow graphene at wafer scale, which is required for industrial applications. [...]
2014 - 10.1002/adma.201401389
Advanced materials, Vol. 26, issue 30 (August 2014) , p. 5079-5094  
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12.
10 p, 3.9 MB Universal Spin Diffusion Length in Polycrystalline Graphene / Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Dubois, Simon M. M. (Université Catholique de Louvain) ; Charlier, Jean Christophe (Université Catholique de Louvain) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
Graphene grown by chemical vapor deposition (CVD) is the most promising material for industrial-scale applications based on graphene monolayers. It also holds promise for spintronics; despite being polycrystalline, spin transport in CVD graphene has been measured over lengths up to 30 μm, which is on par with the best measurements made in single-crystal graphene. [...]
2019 - 10.1021/acs.nanolett.9b03112
Nano letters, Vol. 19, Issue 10 (October 2019) , p. 7418-7426  
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13.
9 p, 1.8 MB Magnetic proximity in a van der Waals heterostructure of magnetic insulator and graphene / Karpiak, Bogdan (Chalmers University of Technology) ; Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Zollner, Klaus (University of Regensburg) ; Vila Tusell, Marc (Universitat Autònoma de Barcelona. Departament de Física) ; Khokhriakov, Dmitrii (Chalmers University of Technology) ; Hoque, Anamul Md (Chalmers University of Technology) ; Dankert, André (Chalmers University of Technology) ; Svedlindh, Peter (Uppsala University) ; Fabian, Jaroslav (University of Regensburg) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Dash, Saroj P. (Chalmers University of Technology)
Engineering 2D material heterostructures by combining the best of different materials in one ultimate unit can offer a plethora of opportunities in condensed matter physics. Here, in the van der Waals heterostructures of the ferromagnetic insulator CrGeTe and graphene, our observations indicate an out-of-plane proximity-induced ferromagnetic exchange interaction in graphene. [...]
2019 - 10.1088/2053-1583/ab5915
2D Materials, Vol. 7, Núm. 1 (December 2019) , art. 15026  
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14.
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 (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  
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15.
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 (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  
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16.
7 p, 2.8 MB Proximity-induced spin-orbit coupling in graphene/ Bi1.5Sb0.5Te1.7Se1.3 heterostructures / Jafarpisheh, S. (Peter Grünberg Institute) ; Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Watanabe, Kenji (National Institute for Material Science (Tsukuba, Japan)) ; Taniguchi, Takashi (National Institute for Material Science (Tsukuba, Japan)) ; Beschoten, Bernd (RWTH Aachen University) ; Stampfer, Cristoph (RWTH Aachen University)
The weak intrinsic spin-orbit coupling in graphene can be greatly enhanced by proximity coupling. Here, we report on the proximity-induced spin-orbit coupling in graphene transferred by hexagonal boron nitride (hBN) onto the topological insulator Bi1. [...]
2018 - 10.1103/PhysRevB.98.241402
Physical review B, Vol. 98, Issue 24 (December 2018) , art. 241402  
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17.
12 p, 1.6 MB Spin Proximity Effects in Graphene/Topological Insulator Heterostructures / Song, Kenan (Institut Català de Nanociència i Nanotecnologia) ; Soriano, David (QuantaLab and International Iberian Nanotechnology Laboratory) ; Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Robles, Roberto (Institut Català de Nanociència i Nanotecnologia) ; Ordejon, Pablo (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
Enhancing the spin-orbit interaction in graphene, via proximity effects with topological insulators, could create a novel 2D system that combines nontrivial spin textures with high electron mobility. [...]
2018 - 10.1021/acs.nanolett.7b05482
Nano letters, Vol. 18, Issue 3 (March 2018) , p. 2033-2039  
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18.
11 p, 562.6 KB Spin transport in hydrogenated graphene / Soriano, David (Institut Català de Nanociència i Nanotecnologia) ; Dinh, Van Tuan (Institut Català de Nanociència i Nanotecnologia) ; Dubois, Simon M. M. (Université Catholique de Louvain. Institute of Condensed Matter and Nanosciences) ; Gmitra, Martin (University of Regensburg) ; Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Kochan, Denis (University of Regensburg) ; Ortmann, Frank (Technische Universität Dresden) ; Charlier, Jean Christophe (Université Catholique de Louvain. Institute of Condensed Matter and Nanosciences) ; Fabian, Jaroslav (Universität Regensburg) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
In this review we discuss the multifaceted problem of spin transport in hydrogenated graphene from a theoretical perspective. The current experimental findings suggest that hydrogenation can either increase or decrease spin lifetimes, which calls for clarification. [...]
2015 - 10.1088/2053-1583/2/2/022002
2D Materials, Vol. 2, Núm. 2 (June 2015) , art. 22002  
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19.
7 p, 3.5 MB Quantum Hall effect in polycrystalline graphene : The role of grain boundaries / Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Cresti, Alessandro (Université Grenoble Alpes) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
We use numerical simulations to predict peculiar magnetotransport fingerprints in polycrystalline graphene, driven by the presence of grain boundaries of varying size and orientation. The formation of Landau levels is shown to be restricted by the polycrystalline morphology, requiring the magnetic length to be smaller than the average grain radius. [...]
2014 - 10.1103/PhysRevB.90.161401
Physical review B : Condensed matter and materials physics, Vol. 90, Issue 16 (October 2014) , art. 161401  
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20.
11 p, 3.3 MB Spin precession in anisotropic media / Raes, Bart (Institut Català de Nanociència i Nanotecnologia) ; Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Bonell, Frédéric (Institut Català de Nanociència i Nanotecnologia) ; Costache, Marius Vasile. (Institut Català de Nanociència i Nanotecnologia) ; Sierra, Juan F. (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia)
We generalize the diffusive model for spin injection and detection in nonlocal spin structures to account for spin precession under an applied magnetic field in an anisotropic medium, for which the spin lifetime is not unique and depends on the spin orientation. [...]
2017 - 10.1103/PhysRevB.95.085403
Physical review B, Vol. 95, Issue 8 (February 2017) , art. 85403  
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Articles : 34 registres trobats   anterior11 - 20següentfinal  anar al registre:
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1 Cummings, A. W.
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