Results overview: Found 20 records in 0.02 seconds.
Articles, 19 records found
Research literature, 1 records found
Articles 19 records found  1 - 10next  jump to record:
1.
21 p, 7.4 MB Control of spin-charge conversion in van der Waals heterostructures / Galceran, Regina (Institut Català de Nanociència i Nanotecnologia) ; Tian, Bo (King Abdullah University of Science and Technology) ; Li, Junzhu (King Abdullah University of Science and Technology) ; Bonell, Frédéric (University of Grenoble Alpes. Spintec) ; Jamet, Matthieu (University of Grenoble Alpes. Spintec) ; Vergnaud, Céline (University of Grenoble Alpes. Spintec) ; Marty, Alain (University of Grenoble Alpes. Spintec) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Sierra, Juan F. (Institut Català de Nanociència i Nanotecnologia) ; Costache, Marius Vasile (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia) ; Manchon, Auréliene (Aix-Marseille Université) ; Zhang, Xixiang (King Abdullah University of Science and Technology) ; Schwingenschlögl, Udo (King Abdullah University of Science and Technology)
The interconversion between spin and charge degrees of freedom offers incredible potential for spintronic devices, opening routes for spin injection, detection, and manipulation alternative to the use of ferromagnets. [...]
2021 - 10.1063/5.0054865
APL Materials, Vol. 9, issue 10 (Oct. 2021) , art. 100901  
2.
5 p, 656.4 KB Have mysterious topological valley currents been observed in graphene superlattices? / Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Power, Stephen R. (Trinity College Dublin. School of Physics) ; Nikolić, Branislav K. (University of Delaware. Department of Physics and Astronomy) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Jauho, Antti-Pekka (Technical University of Denmark. Center for Nanostructured Graphene)
We provide a critical discussion concerning the claim of topological valley currents, driven by a global Berry curvature and valley Hall effect proposed in recent literature. After pointing out a major inconsistency of the theoretical scenario proposed to interpret giant nonlocal resistance, we discuss various possible alternative explanations and open directions of research to solve the mystery of nonlocal transport in graphene superlattices.
2022 - 10.1088/2515-7639/ac452a
JPhys materials, Vol. 5, issue 2 (April 2022) , art. 21001  
3.
69 p, 4.2 MB Linear scaling quantum transport methodologies / Fan, Zheyong (Bohai University. School of Mathematics and Physics) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Barrios Vargas, José Eduardo (Universidad Nacional Autónoma de México. Departamento de Física y Química Teórica) ; Panhans, Michel (Technische Universität Dresden. Center for Advancing Electronics) ; Harju, Ari (Varian Medical Systems Finland) ; Ortmann, Frank (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
In recent years, predictive computational modeling has become a cornerstone for the study of fundamental electronic, optical, and thermal properties in complex forms of condensed matter, including Dirac and topological materials. [...]
2021 - 10.1016/j.physrep.2020.12.001
Physics Reports, Vol. 903 (April 2021) , p. 1-69  
4.
7 p, 5.2 MB Valley Hall effect and nonlocal resistance in locally gapped graphene / Aktor, Thomas (Technical University of Denmark. Center for Nanostructured Graphene) ; Garcia, José H (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Jauho, Antti-Pekka (Technical University of Denmark. Center for Nanostructured Graphene) ; Power, Stephen R. (Trinity College Dublin. School of Physics)
We report on the emergence of bulk, valley-polarized currents in graphene-based devices, driven by spatially varying regions of broken sublattice symmetry, and revealed by nonlocal resistance (RNL) fingerprints. [...]
2021 - 10.1103/PhysRevB.103.115406
Physical review B, Vol. 103, issue 11 (March 2021) , art. 115406  
5.
18 p, 1.5 MB Tunable room-temperature spin galvanic and spin Hall effects in van der Waals heterostructures / Benítez, L. Antonio (Institut Català de Nanociència i Nanotecnologia) ; Savero Torres, Williams Fernando (Institut Català de Nanociència i Nanotecnologia) ; Sierra, Juan F. (Institut Català de Nanociència i Nanotecnologia) ; Timmermans, Matias (Institut Català de Nanociència i Nanotecnologia) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Costache, Marius Vasile (Institut Català de Nanociència i Nanotecnologia) ; Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia)
Spin-orbit coupling stands as a powerful tool to interconvert charge and spin currents and to manipulate the magnetization of magnetic materials through spin-torque phenomena. However, despite the diversity of existing bulk materials and the recent advent of interfacial and low-dimensional effects, control of this interconversion at room temperature remains elusive. [...]
2020 - 10.1038/s41563-019-0575-1
Nature materials, Vol. 19, issue 2 (Feb. 2020) , p. 170-175  
6.
27 p, 986.9 KB Magnetism, spin dynamics, and quantum transport in two-dimensional systems / Savero Torres, Williams Fernando (Institut Català de Nanociència i Nanotecnologia) ; Sierra, Juan F. (Institut Català de Nanociència i Nanotecnologia) ; Benítez, L. Antonio (Institut Català de Nanociència i Nanotecnologia) ; Bonell, Frédéric (Université Grenoble-Alpes) ; Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia)
Two-dimensional (2D) quantum materials offer a unique platform to explore mesoscopic phenomena driven by interfacial and topological effects. Their tunable electric properties and bidimensional nature enable their integration into sophisticated heterostructures with engineered properties, resulting in the emergence of new exotic phenomena not accessible in other platforms. [...]
2020 - 10.1557/mrs.2020.121
MRS Bulletin, Vol. 45, issue 5 (May 2020) , p. 357-365  
7.
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  
8.
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
JPhys materials, Vol. 1, Núm. 1 (September 2018) , art. 015005  
9.
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)
2018 - 10.1088/2515-7639/aad585
JPhys materials, Vol. 1, Núm. 1 (September 2018) , art. 015006  
10.
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 (Toronto, Canadà)) ; 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  

Articles : 19 records found   1 - 10next  jump to record:
Research literature 1 records found  
1.
96 p, 3.8 MB Utilidad de la Herniectomía y Discectomía Percutánea guiada por Tomografía Computarizada / Cifrián Pérez, Manuel ; Martínez Noguera, Antonio, dir. ; García Vila, José Hermenegildo, dir. ; Martínez Noguera, Antonio, dir.
L'objectiu principal d'aquest estudi és avaluar l'eficàcia de la herniectomía percutània guiada mitjançant TC i fluoroscòpia. Es tracta d'un nou tipus de tractament alternatiu a la cirurgia, i que en el nostre cas hem avaluat per a pacients que presenten dolor radicular causat per hèrnia discal lumbar i refractari a tractament conservador. [...]
El objetivo principal de este estudio es evaluar la eficacia de la herniectomía percutánea guiada mediante TC y fluoroscopia. Se trata de un nuevo tipo de tratamiento alternativo a la cirugía, y que en nuestro caso hemos evaluado para pacientes que presentan dolor radicular causado por hernia discal lumbar y refractario a tratamiento conservador. [...]
The main objective of this study is to evaluate the efficacy of CT- and fluoroscopy-guided percutaneous herniectomy. It is a new type of alternative treatment to surgery, and in our case, we have evaluated the treatment for patients with radicular pain caused by lumbar disc herniation that showed no improvement after conservative medical treatment. [...]

2021  

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