Results overview: Found 42 records in 0.02 seconds.
Articles, 41 records found
Research literature, 1 records found
Articles 41 records found  1 - 10nextend  jump to record:
1.
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 W. (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  
2.
8 p, 505.6 KB Quantum transport in chemically functionalized graphene at high magnetic field : Defect-induced critical states and breakdown of electron-hole symmetry / Leconte, Nicolas (Institut Català de Nanociència i Nanotecnologia) ; Ortmann, Frank (Institut Català de Nanociència i Nanotecnologia) ; Cresti, Alessandro (Université Grenoble Alpes) ; Charlier, Jean Christophe (Université Catholique de Louvain. Institute of Condensed Matter and Nanosciences) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
Unconventional magnetotransport fingerprints in the quantum Hall regime (with applied magnetic fields from one to several tens of Tesla) in chemically functionalized graphene are reported. Upon chemical adsorption of monoatomic oxygen (from 0. [...]
2014 - 10.1088/2053-1583/1/2/021001
2D Materials, Vol. 1, Núm. 2 (September 2014) , art. 21001  
3.
7 p, 3.5 MB Quantum Hall effect in polycrystalline graphene : The role of grain boundaries / Cummings, Aron W. (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, Vol. 90, Issue 16 (October 2014) , art. 161401  
4.
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  
5.
6 p, 1.4 MB Ballistic tracks in graphene nanoribbons / Aprojanz, Johannes (Technische Universität Chemnitz. Institut für Physik) ; Power, Stephen R. (Institut Català de Nanociència i Nanotecnologia) ; Bampoulis, Pantelis (Leibniz Universität Hannover. Institut für Festkörperphysik) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Jauho, Antti-Pekka (Danmarks Tekniske Universitet. Center for Nanostructured Graphene) ; Zandvliet, Harold J.W. (University of Twente. Physics of Interfaces and Nanomaterials) ; Zakharov, Alexei A. (Lund University. MAX IV Laboratory) ; Tegenkamp, C. (Institut für Festkörperphysik. Leibniz Universität Hannover)
High quality graphene nanoribbons epitaxially grown on the sidewalls of silicon carbide (SiC) mesa structures stand as key building blocks for graphene-based nanoelectronics. Such ribbons display 1D single-channel ballistic transport at room temperature with exceptionally long mean free paths. [...]
2018 - 10.1038/s41467-018-06940-5
Nature Communications, Vol. 9 (October 2018) , art. 4426  
6.
11 p, 3.3 MB Spin precession in anisotropic media / Raes, Bart (Institut Català de Nanociència i Nanotecnologia) ; Cummings, Aron W. (Institut Català de Nanociència i Nanotecnologia) ; Bonell, Frédéric (Institut Català de Nanociència i Nanotecnologia) ; Costache, Marius V. (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  
7.
13 p, 1.2 MB Record low thermal conductivity of polycrystalline MoS2 films : tuning the thermal conductivity by grain orientation / Sledzinska, Marianna (Institut Català de Nanociència i Nanotecnologia) ; Quey, Romain (Centre national de la recherche scientifique. École nationale supérieure des mines de Saint-Étienne) ; Mortazavi, Bohayra (Bauhaus-Universität Weimar. Institute of Structural Mechanics) ; Graczykowski, Bartlomiej (Adam Mickiewicz University. NanoBioMedical Centre) ; Placidi, M. (Institut de Recerca en Energia de Catalunya) ; Saleta Reig, David (Institut Català de Nanociència i Nanotecnologia) ; Navarro Urrios, Daniel (Institut Català de Nanociència i Nanotecnologia) ; Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia) ; Colombo, Luciano (Università di Cagliari. Dipartimento di Fisica) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia)
We report a record low thermal conductivity in polycrystalline MoS obtained for ultrathin films with varying grain sizes and orientations. By optimizing the sulfurization parameters of nanometer-thick Mo layers, five MoS films containing a combination of horizontally and vertically oriented grains, with respect to the bulk (001) monocrystal, were grown. [...]
2017 - 10.1021/acsami.7b08811
ACS Applied Materials and Interfaces, Vol. 9, Issue 43 (November 2017) , p. 37905-37911  
8.
17 p, 868.1 KB Impact of vacancies on diffusive and pseudodiffusive electronic transport in graphene / Cresti, Alessandro (Université Grenoble Alpes) ; Louvet, Thibaud (Institut Català de Nanociència i Nanotecnologia) ; Ortmann, Frank (Institut Català de Nanociència i Nanotecnologia) ; Dinh, Van Tuan (Institut Català de Nanociència i Nanotecnologia) ; Lenarczyk, Pawel (Institut Català de Nanociència i Nanotecnologia) ; Huhs, Georg (Centre Nacional de Supercomputació) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
We present a survey of the effect of vacancies on quantum transport in graphene, exploring conduction regimes ranging from tunnelling to intrinsic transport phenomena. Vacancies, with density up to 2%, are distributed at random either in a balanced manner between the two sublattices or in a totally unbalanced configuration where only atoms sitting on a given sublattice are randomly removed. [...]
2013 - 10.3390/cryst3020289
Crystals, Vol. 3, Issue 2 (June 2013) , p. 289-305  
9.
214 p, 55.9 MB Science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems / Ferrari, Andrea C. (University of Cambridge) ; Bonaccorso, Francesco (Istituto Italiano di Tecnologia) ; Fal'ko, Vladimir (Lancaster University. Department of Physics) ; Novoselov, Konstantin S. (University of Manchester) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Bøggild, Peter (Technical University of Denmark) ; Borini, Stefano (Nokia Technologies) ; Koppens, Frank H.L. (Institut de Ciències Fotòniques) ; Palermo, Vincenzo (CNR-Istituto per la Sintesi Organica e la Fotoreattività) ; Pugno, Nicola (Queen Mary University of London) ; Garrido Ariza, José A. (Technische Universität München) ; Sordan, Roman (Politecnico di Milano) ; Bianco, Alberto (Institut de Biologie Moleculaire et Cellulaire) ; Ballerini, Laura (Università di Trieste) ; Prato, Maurizio (Università di Trieste. Dipartimento di Scienze Farmaceutiche) ; Lidorikis, Elefterios (University of Ioannina. Department of Materials Science and Engineering) ; Kivioja, Jani (Nokia Technologies) ; Marinelli, Claudio (Wilton Centre) ; Ryhänen, Tapani (Nokia Technologies) ; Morpurgo, Alberto (Université de Genève. Département de Physique de la Matière Condensée) ; Coleman, Jonathan N. (Trinity College) ; Nicolosi, Valeria (Trinity College) ; Colombo, Luigi (Texas Instruments Incorporated) ; Fert, Albert (Université de Paris-Sud) ; García Hernández, Mar (Instituto de Ciencia de Materiales de Madrid) ; Bachtold, Adrian (Institut de Ciències Fotòniques) ; Schneider, Gregory F. (Leiden University) ; Guinea, Francisco (Instituto de Ciencia de Materiales de Madrid) ; Dekker, Cees (Delft University of Technology) ; Barbone, Matteo (University of Cambridge) ; Sun, Zhipei (University of Cambridge) ; Galiotis, Costas (University of Patras. Department of Chemical Engineering) ; Grigorenko, Alexander N. (University of Manchester) ; Konstantatos, Gerasimos (Institut de Ciències Fotòniques) ; Kis, Andras (Ecole Polytechique Fédérale de Lausanne) ; Katsnelson, Mikhail (Radboud University Nijmegen) ; Vandersypen, Lieven (Delft University of Technology) ; Loiseau, Annick (Laboratoire d'Etude des Microstructures) ; Morandi, Vittorio (CNR-Istituto per la Microelettronica e i Microsistemi) ; Neumaier, Daniel (Advanced Microelectronic Centre Aachen) ; Treossi, Emanuele (CNR-Istituto per la Sintesi Organica e la Fotoreattività) ; Pellegrini, Vittorio (Scuola Normale Superiore) ; Polini, Marco (Scuola Normale Superiore) ; Tredicucci, Alessandro (Scuola Normale Superiore) ; Williams, Gareth M. (Airbus UK Ltd) ; Hee Hong, Byung (Seoul National University. Department of Chemistry) ; Ahn, Jong Hyun (Yonsei University) ; Kim, Jong Min (University of Oxford. Department of Engineering Science) ; Zirath, Herbert (Chalmers University of Technology. Department of Microtechnology and Nanoscience) ; Van Wees, Bart J. (University of Groningen) ; Van Der Zant, Herre S.J. (Delft University of Technology) ; Occhipinti, Luigi (STMicroelectronics) ; Di Matteo, Andrea (STMicroelectronics) ; Kinloch, Ian A. (University of Manchester) ; Seyller, Thomas (Technische Universität Chemnitz) ; Quesnel, Etienne (Institut LITEN) ; Feng, Xinliang (Max-Planck-Institut für Polymerforschung) ; Teo, Ken (Aixtron Ltd.) ; Rupesinghe, Nalin (Aixtron Ltd.) ; Hakonen, Pertti (Aalto University) ; Neil, Simon R.T. (CambridgeIP) ; Tannock, Quentin (CambridgeIP) ; Löfwander, Tomas (Chalmers University of Technology. Department of Microtechnology and Nanoscience) ; Kinaret, Jari (Chalmers University of Technology. Department of Applied Physics)
We present the science and technology roadmap for graphene, related two-dimensional crystals, and hybrid systems, targeting an evolution in technology, that might lead to impacts and benefits reaching into most areas of society. [...]
2015 - 10.1039/c4nr01600a
Nanoscale, Vol. 7, Issue 11 (March 2015) , p. 4598-4810  
10.
8 p, 761.1 KB Scale-invariant large nonlocality in polycrystalline graphene / Ribeiro, Mário (Nanogune) ; Power, Stephen R. (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Hueso, Luis E. (Nanogune) ; Casanova, Fèlix (Nanogune)
The observation of large nonlocal resistances near the Dirac point in graphene has been related to a variety of intrinsic Hall effects, where the spin or valley degrees of freedom are controlled by symmetry breaking mechanisms. [...]
2017 - 10.1038/s41467-017-02346-x
Nature communications, Vol. 8, issue 1 (Jan. 2017) , art. 2198  

Articles : 41 records found   1 - 10nextend  jump to record:
Research literature 1 records found  
1.
228 p, 4.6 MB Charge and Spin Transport in Disordered Graphene-Based Materials / Dinh, Van Tuan ; Roche, Stephan, dir. ; Pascual, Jordi ; Universitat Autònoma de Barcelona. Departament de Física
Esta tesis está enfocada en la modelización y simulación del transporte de carga y spin en materiales bidimensionales basados en Grafeno, así como en el impacto de la policristalinidad en el rendimiento de transistores de efecto campo diseñados con este tipo de materiales. [...]
This thesis is focused on modeling and simulation of charge and spin transport in two dimensional graphene-based materials as well as the impact of graphene polycrystallinity on the performance of graphene field-effect transistors. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2014  

See also: similar author names
4 Roche, S.
1 Roche, Stephan,
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