UAB Digital Repository of Documents 131 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
1.
6 p, 3.0 MB Minimum action path theory reveals the details of stochastic transitions out of oscillatory states / Cruz Moreno, Roberto de la (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Perez-Carrasco, Ruben (University College London. Department of Mathematics (UK)) ; Guerrero Contreras, Pilar (University College London. Department of Mathematics (UK)) ; Alarcón Cor, Tomás (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Page, Karen M. (University College London. Department of Mathematics (UK)) ; Universitat Autònoma de Barcelona. Centre de Recerca Matemàtica
Cell state determination is the outcome of intrinsically stochastic biochemical reactions. Transitions between such states are studied as noise-driven escape problems in the chemical species space. Escape can occur via multiple possible multidimensional paths, with probabilities depending nonlocally on the noise. [...]
2018 - 10.1103/PhysRevLett.120.128102
Physical review letters, Vol. 120, Issue 12 (March 2018) , art. 128102  
2.
5 p, 445.5 KB Piezoelectric Mimicry of Flexoelectricity / Abdollahi, Amir (Universitat Politècnica de Catalunya) ; Vásquez Sancho, Fabián (Institut Català de Nanociència i Nanotecnologia) ; Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
The origin of "giant" flexoelectricity, orders of magnitude larger than theoretically predicted, yet frequently observed, is under intense scrutiny. There is mounting evidence correlating giant flexoelectriclike effects with parasitic piezoelectricity, but it is not clear how piezoelectricity (polarization generated by strain) manages to imitate flexoelectricity (polarization generated by strain gradient) in typical beam-bending experiments, since in a bent beam the net strain is zero. [...]
2018 - 10.1103/PhysRevLett.121.205502
Physical review letters, Vol. 121, Issue 20 (November 2018) , art. 205502  
3.
2 p, 566.7 KB De la Cruz et al. Reply / Cruz Moreno, Roberto de la (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Perez-Carrasco, Rubén (University College London. Department of Mathematics) ; Guerrero Contreras, Pilar (University College London. Department of Mathematics) ; Alarcón Cor, Tomás (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Page, Karen M. (University College London. Department of Mathematics)
2019 - 10.1103/PhysRevLett.122.059802
Physical review letters, Vol. 122, Issue 5 (February 2019) , art. 059802  
4.
8 p, 627.7 KB Selective-Area-Grown Semiconductor-Superconductor Hybrids : A Basis for Topological Networks / Vaitiekenas, Saulius (University of Copenhagen) ; Whiticar, A.M. (University of Copenhagen) ; Deng, M.T. (University of Copenhagen) ; Krizek, Filip (University of Copenhagen) ; Sestoft, Joachim E. (University of Copenhagen) ; Palmstrøm, C.J. (University of California. Materials Department) ; Martí-Sánchez, Sara (Institut Català de Nanociència i Nanotecnologia) ; Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Krogstrup, Peter (University of Copenhagen) ; Casparis, Lucas (University of Copenhagen) ; Marcus, Charles M. (University of Copenhagen)
We introduce selective area grown hybrid InAs/Al nanowires based on molecular beam epitaxy, allowing arbitrary semiconductor-superconductor networks containing loops and branches. Transport reveals a hard induced gap and unpoisoned 2e-periodic Coulomb blockade, with temperature dependent 1e features in agreement with theory. [...]
2018 - 10.1103/PhysRevLett.121.147701
Physical review letters, Vol. 121, Issue 14 (October 2018) , art. 147701  
5.
8 p, 3.4 MB Periodicity-doubling cascades : direct observation in ferroelastic materials / Everhardt, Arnoud S. (Zernike Institute for Advanced Materials) ; Damerio, Silvia (Zernike Institute for Advanced Materials) ; Zorn, Jacob A. (Pennsylvania State University. Department of Materials Science and Engineering) ; Zhou, Silang (Zernike Institute for Advanced Materials) ; Domingo Marimon, Neus (Institut Català de Nanociència i Nanotecnologia) ; Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia) ; Salje, Ekhard K. H. (University of Cambridge) ; Chen, Long-Qing (Pennsylvania State University. Department of Materials Science and Engineering) ; Noheda, Beatriz (Rijksuniversiteit Groningen. CogniGron Center)
Very sensitive responses to external forces are found near phase transitions. However, transition dynamics and preequilibrium phenomena are difficult to detect and control. We have observed that the equilibrium domain structure following a phase transition in ferroelectric and ferroelastic BaTiO3 is attained by halving of the domain periodicity multiple times. [...]
2019 - 10.1103/PhysRevLett.123.087603
Physical review letters, Vol. 123, issue 8 (August 2019) , art. 87603  
6.
16 p, 968.3 KB Flexoelectric fracture-ratchet effect in ferroelectrics / Cordero Edwards, Rohini Kumara (Institut Català de Nanociència i Nanotecnologia) ; Kianirad, Hoda (Kungliga Tekniska högskolan. Institutionen för Tillämpad fysik) ; Canalias, Carlot (Kungliga Tekniska högskolan. Institutionen för Tillämpad fysik) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ; Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
The propagation front of a crack generates large strain gradients and it is therefore a strong source of gradient-induced polarization (flexoelectricity). Herein, we demonstrate that, in piezoelectric materials, a consequence of flexoelectricity is that crack propagation is helped or hindered depending on whether it is parallel or antiparallel to the piezoelectric polar axis. [...]
2019 - 10.1103/PhysRevLett.122.135502
Physical review letters, Vol. 122, issue 13 (April 2019) , p. 135502  
7.
12 p, 363.5 KB Large flexoelectric anisotropy in paraelectric Barium Titanate / Narvaez, Jackeline (Institut Català de Nanociència i Nanotecnologia) ; Saremi, Sahar (Institut Català de Nanociència i Nanotecnologia) ; Hong, Jiawang (Oak Ridge National Laboratory. Materials Science and Technology Division) ; Stengel, Massimiliano (Institut de Ciència de Materials de Barcelona) ; Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
The bending-induced polarization of barium titanate single crystals has been measured with an aim to elucidate the origin of the large difference between theoretically predicted and experimentally measured flexoelectricity in this material. [...]
2015 - 10.1103/PhysRevLett.115.037601
Physical review letters, Vol. 115, Issue 3 (July 2015) , art. 37601  
8.
7 p, 4.0 MB Synchronization of Optomechanical Nanobeams by Mechanical Interaction / Colombano Sosa, Martín (Institut Català de Nanociència i Nanotecnologia) ; Arregui Bravo, Guillermo (Institut Català de Nanociència i Nanotecnologia) ; Capuj, N.E. (Instituto Universitario de Materiales y Nanotecnología. Universidad de la Laguna) ; Pitanti, A. (NEST, Istituto Nanoscienze (Pisa, Itàlia)) ; Maire, Jeremie (Institut Català de Nanociència i Nanotecnologia) ; Griol, Amadeu (Universitat Politècnica de València) ; Garrido Fernández, Blas (Universitat de Barcelona. Departament d'Enginyerìa Electrònica i Biomèdica) ; Martínez, Alejandro (Universitat Politècnica de València) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Navarro Urrios, Daniel (Universitat de Barcelona. Departament d'Enginyerìa Electrònica i Biomèdica) ; Universitat Autònoma de Barcelona. Departament de Física
The synchronization of coupled oscillators is a phenomenon found throughout nature. Mechanical oscillators are paradigmatic examples, but synchronizing their nanoscaled versions is challenging. We report synchronization of the mechanical dynamics of a pair of optomechanical crystal cavities that, in contrast to previous works performed in similar objects, are intercoupled with a mechanical link and support independent optical modes. [...]
2019 - 10.1103/PhysRevLett.123.017402
Physical review letters, Vol. 123, Issue 1 (July 2019) , art. 017402  
9.
6 p, 743.4 KB Anderson Photon-Phonon Colocalization in Certain Random Superlattices / Arregui Bravo, Guillermo (Institut Català de Nanociència i Nanotecnologia) ; Lanzillotti-Kimura, Daniel (Centre de Nanosciences et de Nanotechnologies) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; García Fernández, Pedro David (Institut Català de Nanociència i Nanotecnologia)
Fundamental observations in physics ranging from gravitational wave detection to laser cooling of a nanomechanical oscillator into its quantum ground state rely on the interaction between the optical and the mechanical degrees of freedom. [...]
2019 - 10.1103/PhysRevLett.122.043903
Physical review letters, Vol. 122, Issue 4 (February 2019) , art. 43903  
10.
7 p, 2.3 MB Spin hall effect and origins of nonlocal Resistance in adatom-decorated graphene / Dinh, Van Tuan (Institut Català de Nanociència i Nanotecnologia) ; Marmolejo Tejada, J.M. (University of Delaware. Department of Physics and Astronomy) ; Waintal, X. (Université Grenoble Alpes) ; Nikolić, B.K. (University of Delaware. Department of Physics and Astronomy) ; Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
Recent experiments reporting an unexpectedly large spin Hall effect (SHE) in graphene decorated with adatoms have raised a fierce controversy. We apply numerically exact Kubo and Landauer-Büttiker formulas to realistic models of gold-decorated disordered graphene (including adatom clustering) to obtain the spin Hall conductivity and spin Hall angle, as well as the nonlocal resistance as a quantity accessible to experiments. [...]
2016 - 10.1103/PhysRevLett.117.176602
Physical review letters, Vol. 117, issue 17 (Oct. 2016) , p. 176602  

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