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Resultados globales: 5 registros encontrados en 0.03 segundos.
Artículos, Encontrados 5 registros
Artículos Encontrados 5 registros  
1.
41 p, 1.9 MB Van der Waals heterostructures for spintronics and opto-spintronics / Sierra, Juan F. (Institut Català de Nanociència i Nanotecnologia) ; Fabian, Jaroslav (University of Regensburg. Institute for Theoretical Physics) ; Kawakami, Roland (Ohio State University. Department of Physics) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia)
The large variety of 2D materials and their co-integration in van der Waals heterostructures enable innovative device engineering. In addition, their atomically thin nature promotes the design of artificial materials by proximity effects that originate from short-range interactions. [...]
2021 - 10.1038/s41565-021-00936-x
Nature Nanotechnology, Vol. 16, issue 8 (August 2021) , p. 856-868  
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2.
18 p, 7.5 MB Graphene on two-dimensional hexagonal BN, AlN, and GaN : electronic, spin-orbit, and spin relaxation properties / Zollner, Klaus (University of Regensburg. Institute for Theoretical Physics) ; Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Fabian, Jaroslav (University of Regensburg. Institute for Theoretical Physics)
We investigate the electronic band structure of graphene on a series of two-dimensional hexagonal nitride insulators hXN, X=B, Al, and Ga, with first-principles calculations. A symmetry-based model Hamiltonian is employed to extract orbital parameters and spin-orbit coupling (SOC) from the low-energy Dirac bands of the proximitized graphene. [...]
2021 - 10.1103/PhysRevB.103.075129
Physical review B, Vol. 103, issue 7 (Feb. 2021) , art. 75129  
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3.
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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4.
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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5.
9 p, 997.0 KB Giant spin lifetime anisotropy in graphene induced by proximity effects / Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Fabian, Jaroslav (Universität Regensburg. Insitute for Theoretical Physics) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
We report on fundamental aspects of spin dynamics in heterostructures of graphene and transition metal dichalcogenides (TMDCs). By using realistic models derived from first principles we compute the spin lifetime anisotropy, defined as the ratio of lifetimes for spins pointing out of the graphene plane to those pointing in the plane. [...]
2017 - 10.1103/PhysRevLett.119.206601
Physical review letters, Vol. 119 issue 20 (Nov. 2017) , p. 206601  
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