Dipòsit Digital de Documents de la UAB 135 registres trobats  1 - 10següentfinal  anar al registre: La cerca s'ha fet en 0.02 segons. 
1.
12 p, 2.3 MB Multiple quantum phases in graphene with enhanced spin-orbit coupling : from the quantum spin hall regime to the spin hall effect and a robust metallic state / Cresti, Alessandro (IMEP-LAHC) ; Dinh, Van Tuan (Universitat Autònoma de Barcelona. Departament de Física) ; Soriano, David (Institut Català de Nanociència i Nanotecnologia) ; Cummings, Aron (Institut Català de Nanociència i Nanotecnologia) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
We report an intriguing transition from the quantum spin Hall phase to the spin Hall effect upon segregation of thallium adatoms adsorbed onto a graphene surface. Landauer-Büttiker and Kubo-Greenwood simulations are used to access both edge and bulk transport physics in disordered thallium-functionalized graphene systems of realistic sizes. [...]
2014 - 10.1103/PhysRevLett.113.246603
Physical review letters, Vol. 113, issue 24 (Dec. 2014) , art. 246603  
2.
6 p, 509.4 KB Spin-dependent electron scattering at graphene edges on Ni(111) / Garcia-Lekue, Aran (Donostia International Physics Center) ; Balashov, Timofey (Institut Català de Nanociència i Nanotecnologia) ; Olle, M. (Institut Català de Nanociència i Nanotecnologia) ; Ceballos, Gustavo (Institut Català de Nanociència i Nanotecnologia) ; Arnau Pino, Andrés (IKERBASQUE) ; Gambardella, Pietro (Institut Català de Nanociència i Nanotecnologia) ; Sanchez-Portal, Daniel (CSIC-UPV - Centro de Física de Materiales (CFM)) ; Mugarza, Aitor (Institut Català de Nanociència i Nanotecnologia)
We investigate the scattering of surface electrons by the edges of graphene islands grown on Ni(111). By combining local tunneling spectroscopy and ab initio electronic structure calculations we find that the hybridization between graphene and Ni states results in strongly reflecting graphene edges. [...]
2014 - 10.1103/PhysRevLett.112.066802
Physical review letters, Vol. 112, issue 6 (Feb. 2014) , art. 66802  
3.
12 p, 487.8 KB Fingerprints of inelastic transport at the surface of the topological insulator Bi 2 Se 3 : role of electron-phonon coupling / Costache, Marius Vasile (Institut Català de Nanociència i Nanotecnologia) ; Neumann, Ingmar (Institut Català de Nanociència i Nanotecnologia) ; Sierra, Juan F. (Institut Català de Nanociència i Nanotecnologia) ; Marinova, V. (Bulgarian Academy of Science. Institute of Optical Materials and Technologies) ; Gospodinov, M.M. (Bulgarian Academy of Sciences. Institute of Solid State Physics) ; Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ; Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia)
We report on electric-field and temperature-dependent transport measurements in exfoliated thin crystals of the Bi2Se3 topological insulator. At low temperatures (<50 K) and when the chemical potential lies inside the bulk gap, the crystal resistivity is strongly temperature dependent, reflecting inelastic scattering due to the thermal activation of optical phonons. [...]
2014 - 10.1103/PhysRevLett.112.086601
Physical review letters, Vol. 112, issue 8 (Feb. 2014) , art. 86601  
4.
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  
5.
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, 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  
6.
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  
7.
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, 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  
8.
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  
9.
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  
10.
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  

Dipòsit Digital de Documents de la UAB : 135 registres trobats   1 - 10següentfinal  anar al registre:
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