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1.
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9 p, 1.8 MB |
Real-time microscopy of the relaxation of a glass
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Ruiz Ruiz, Marta (Institut Català de Nanociència i Nanotecnologia) ;
Vila Costa, Ana (Universitat Autònoma de Barcelona. Departament de Física) ;
Bar, Tapas (Institut Català de Nanociència i Nanotecnologia) ;
Rodríguez Tinoco, Cristian (Institut Català de Nanociència i Nanotecnologia) ;
González Silveira, Marta (Universitat Autònoma de Barcelona. Departament de Física) ;
Plaza, José A. (Institut de Microelectrònica de Barcelona) ;
Alcalá, Jorge (Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica) ;
Fraxedas, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Rodríguez-Viejo, Javier (Universitat Autònoma de Barcelona. Departament de Física)
The understanding of the dynamics of a glass above its devitrification temperature remains incomplete. Here, we build a spatio-temporal map of the relaxation dynamics of a highly stable glass into its supercooled liquid using real-time atomic force microscopy imaging. [...]
2023 -  10.1038/s41567-023-02125-0
Nature Physics, Vol. 19, Issue 10 (October 2023) , p. 1509-1515
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2.
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14 p, 1.8 MB |
Acute Relaxation Response Induced by Tibetan Singing Bowl Sounds : A Randomized Controlled Trial
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Rio Álamos, Cristobal (Universidad Austral de Chile) ;
Montefusco Siegmund, Rodrigo (Universidad Austral de Chile) ;
Cañete, Toni (Universitat Autònoma de Barcelona. Institut de Neurociències) ;
Sotomayor, Joaquín (Universidad Austral de Chile) ;
Fernández-Teruel, Alberto (Universitat Autònoma de Barcelona. Departament de Psiquiatria i de Medicina Legal)
The prevalence of anxiety has increased dramatically due to COVID-19, so effective preventive interventions are welcome. The main objective of our study was to compare the acute relaxation response (RR) induced by Tibetan singing bowl (TSB) sound-based treatment against progressive muscle relaxation (PMR) and a control waiting list group (CWL) in a single treatment session in an adult nonclinical anxious population. [...]
2023 - 10.3390/ejihpe13020024
European Journal of Investigation in Health, Psychology and Education, Vol. 13 (january 2023) , p. 317-330
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3.
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12 p, 5.1 MB |
Slow Magnetic Relaxation of Dy Adatoms with In-Plane Magnetic Anisotropy on a Two-Dimensional Electron Gas
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Bellini, Valerio (Istituto di Nanoscienze-CNR) ;
Rusponi, Stefano (École Polytechnique Fédérale de Lausanne. Institute of Physics) ;
Kolorenč, Jindřich (Czech Academy of Sciences. Institute of Physics) ;
Mahatha, Sanjoy K. (Thapar Institute of Engineering and Technology) ;
Valbuena, Miguel Ángel (Institut Català de Nanociència i Nanotecnologia) ;
Persichetti, Luca (Università di Roma "Tor Vergata") ;
Pivetta, Marina (École Polytechnique Fédérale de Lausanne. Institute of Physics) ;
Sorokin, Boris V. (École Polytechnique Fédérale de Lausanne. Institute of Physics) ;
Merk, Darius (École Polytechnique Fédérale de Lausanne. Institute of Physics) ;
Reynaud, Sébastien (École Polytechnique Fédérale de Lausanne. Institute of Physics) ;
Sblendorio, Dante (École Polytechnique Fédérale de Lausanne. Institute of Physics) ;
Stepanow, Sebastian (Eidgenössische Technische Hochschule Zürich) ;
Nistor, Corneliu (Eidgenössische Technische Hochschule Zürich) ;
Gargiani, Pierluigi (ALBA Laboratori de Llum de Sincrotró) ;
Betto, Davide (European Synchrotron Radiation Facility) ;
Mugarza, Aitor (Institut Català de Nanociència i Nanotecnologia) ;
Gambardella, Pietro (Eidgenössische Technische Hochschule Zürich) ;
Brune, Harald (École Polytechnique Fédérale de Lausanne. Institute of Physics) ;
Carbone, Carlo (Consiglio Nazionale delle Ricerche. Istituto di Struttura della Materia) ;
Barla, Alessandro (Consiglio Nazionale delle Ricerche. Istituto di Struttura della Materia)
We report on the magnetic properties of Dy atoms adsorbed on the (001) surface of SrTiO. X-ray magnetic circular dichroism reveals slow relaxation of the Dy magnetization on a time scale of about 800 s at 2. [...]
2022 - 10.1021/acsnano.2c04048
ACS nano, Vol. 16, Issue 7 (June 2022) , p. 11182-11193
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4.
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11 p, 569.3 KB |
Rocard's 1941 chaotic relaxation econometric oscillator
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Ginoux, Jean-Marc (Centre National de la Recherche Scientifique. Université de Toulon) ;
Jovanovic, Franck (Teluq University. Université d'Orléans. School of Business Administration) ;
Meucci, Riccardo (Consiglio Nazionale Delle Ricerche. Istituto Nazionale di Ottica) ;
Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
In the beginning of the Second World War, the French physicist, Yves Rocard, published a book entitled Théorie des Oscillateurs (Theory of Oscillators). In Chapter V, he designed a mathematical model consisting of a set of three nonlinear differential equations and allowing to account for economic cycles. [...]
2022 - 10.1142/S0218127422500432
International journal of bifurcation and chaos in applied sciences and engineering, Vol. 32, Issue 3 (March 2022) , art. 2250043
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5.
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18 p, 7.5 MB |
Graphene on two-dimensional hexagonal BN, AlN, and GaN : electronic, spin-orbit, and spin relaxation properties
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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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6.
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10 p, 3.9 MB |
Universal Spin Diffusion Length in Polycrystalline Graphene
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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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7.
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7 p, 2.8 MB |
Proximity-induced spin-orbit coupling in graphene/ Bi1.5Sb0.5Te1.7Se1.3 heterostructures
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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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8.
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12 p, 2.5 MB |
Investigating the spin-orbit interaction in van der Waals heterostructures by means of the spin relaxation anisotropy
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Benítez, L. Antonio (Institut Català de Nanociència i Nanotecnologia) ;
Sierra, Juan F. (Institut Català de Nanociència i Nanotecnologia) ;
Savero Torres, Williams Fernando (Institut Català de Nanociència i Nanotecnologia) ;
Timmermans, Matias (Institut Català de Nanociència i Nanotecnologia) ;
Costache, Marius Vasile. (Institut Català de Nanociència i Nanotecnologia) ;
Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia)
Graphene offers long spin propagation and, at the same time, a versatile platform to engineer its physical properties. Proximity-induced phenomena, taking advantage of materials with large spin-orbit coupling or that are magnetic, can be used to imprint graphene with large spin-orbit coupling and magnetic correlations. [...]
2019 - 10.1063/1.5124894
APL materials, Vol. 7, Issue 12 (December 2019) , art. 120701
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9.
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10.
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11 p, 2.8 MB |
Field effect enhancement in buffered quantum nanowire networks
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Krizek, Filip (Center for Quantum Devices and Station Q Copenhagen) ;
Sestoft, Joachim E. (Center for Quantum Devices and Station Q Copenhagen) ;
Aseev, Pavel (Delft University of Technology) ;
Martí-Sánchez, Sara (Institut Català de Nanociència i Nanotecnologia) ;
Vaitiekenas, Saulius (Center for Quantum Devices and Station Q Copenhagen) ;
Casparis, Lucas (Center for Quantum Devices and Station Q Copenhagen) ;
Khan, Sabbir A. (Center for Quantum Devices and Station Q Copenhagen) ;
Liu, Yu (Center for Quantum Devices and Station Q Copenhagen) ;
Stankevič, Tomas (Center for Quantum Devices and Station Q Copenhagen) ;
Whiticar, A. M. (Center for Quantum Devices and Station Q Copenhagen) ;
Fursina, Alexandra (Delft University of Technology) ;
Boekhout, Frenk (QuTech and Netherlands Organization for Applied Scientific Research) ;
Koops, René (QuTech and Netherlands Organization for Applied Scientific Research) ;
Uccelli, Emanuele (QuTech and Netherlands Organization for Applied Scientific Research) ;
Kouwenhoven, Leo P. (Delft University of Technology) ;
Marcus, Charles M. (Center for Quantum Devices and Station Q Copenhagen) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Krogstrup, Peter (Center for Quantum Devices and Station Q Copenhagen)
III-V semiconductor nanowires have shown great potential in various quantum transport experiments. However, realizing a scalable high-quality nanowire-based platform that could lead to quantum information applications has been challenging. [...]
2018 - 10.1103/PhysRevMaterials.2.093401
Physical review materials, Vol. 2, Issue 9 (September 2018) , art. 93401
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