UAB Digital Repository of Documents 128 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
1.
5 p, 2.1 MB Hypersonic phonon propagation in one-dimensional surface phononic crystal / Graczykowski, Bartlomiej (Institut Català de Nanociència i Nanotecnologia) ; Sledzinska, Marianna (Institut Català de Nanociència i Nanotecnologia) ; Kehagias, Nikolaos (Institut Català de Nanociència i Nanotecnologia) ; Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia) ; Reparaz, Juan Sebastián (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia)
Hypersonic, thermally activated surface acoustic waves propagating in the surface of crystalline silicon patterned with periodic stripes were studied by Brillouin light scattering. Two characteristic directions (normal and parallel to the stripes) of surface acoustic waves propagation were examined exhibiting a distinctive propagation behavior. [...]
2014 - 10.1063/1.4870045
Applied physics letters, Vol. 104, Issue 12 (March 2014) , art. 123108  
2.
6 p, 1.5 MB Resonant tunnelling features in a suspended silicon nanowire single-hole transistor / Llobet Sixto, Jordi (Institut de Microelectrònica de Barcelona) ; Krali, Emiljana (Imperial College London. Department of Electrical and Electronic Engineering) ; Wang, Chen (Imperial College London. Department of Electrical and Electronic Engineering) ; Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Jones, Mervyn E. (Imperial College London. Department of Electrical and Electronic Engineering) ; Pérez Murano, Francesc (Institut de Microelectrònica de Barcelona) ; Durrani, Zahid A. K. (Imperial College London. Department of Electrical and Electronic Engineering) ; ALBA Laboratori de Llum de Sincrotró
Suspended silicon nanowires have significant potential for a broad spectrum of device applications. A suspended p-type Si nanowire incorporating Si nanocrystal quantum dots has been used to form a single-hole transistor. [...]
2015 - 10.1063/1.4936757
Applied physics letters, Vol. 107, issue 22 (Nov. 2015) , art. 223501  
3.
9 p, 815.9 KB Asymmetrically coupled resonators for mass sensing / Márquez, Salomón (Institut Català de Nanociència i Nanotecnologia) ; Álvarez, Mar (Instituto de Microelectronica de Barcelona) ; Plaza, J.A. (Instituto de Microelectronica de Barcelona) ; Villanueva, L.G. (École Polytechnique Fédérale de Lausanne) ; Dominguez, C. (Instituto de Microelectronica de Barcelona) ; Lechuga, Laura M. (Institut Català de Nanociència i Nanotecnologia)
Mechanically coupled resonators have been applied in the last years to the development of nanomechanical mass-sensors based on the detection of the different vibration modes of the system by measuring on a single resonator. [...]
2017 - 10.1063/1.5003023
Applied physics letters, Vol. 111, Núm. 11 (September 2017) , art. 113101  
4.
5 p, 1.8 MB Experimental realization of magnetic energy concentration and transmission at a distance by metamaterials / Prat Camps, Jordi (University of Innsbruck. Institute for Theoretical Physics) ; Navau Ros, Carles (Universitat Autònoma de Barcelona. Departament de Física) ; Sánchez Moreno, Álvaro (Universitat Autònoma de Barcelona. Departament de Física)
Concentrating magnetic energy in a desired volume is an important requirement for many technologies. Here, we experimentally realize a superconductor-ferromagnetic metamaterial that allows to concentrate the magnetostatic energy in its interior and in other situations to amplify the energy in its exterior. [...]
2014 - 10.1063/1.4903867
Applied physics letters, Vol. 105 (2014) , p. 234101  
5.
4 p, 664.5 KB Tunability of the critical-current density in superconductor-ferromagnet hybrids / Valle Benedí, Nuria del (Universitat Autònoma de Barcelona. Departament de Física) ; Navau Ros, Carles (Universitat Autònoma de Barcelona. Departament de Física) ; Sánchez Moreno, Álvaro (Universitat Autònoma de Barcelona. Departament de Física) ; Chen, Du-Xing (Universitat Autònoma de Barcelona. Departament de Física)
Important modifications on the magnetization loops of the superconductor have been observed in superconductor-ferromagnet hybrids due to the effects of the ferromagnetic components, which can be used for tuning the superconductor critical-current density Jc to desirable values. [...]
2011 - 10.1063/1.3591971
Applied physics letters, Vol. 98 (2011) , p. 202506/1-202506/3  
6.
6 p, 4.0 MB Resistive switching in hafnium dioxide layers : local phenomenon at grain Boundaries / Lanza Martínez, Mario (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Bersuker, G. (SEMATECH (Austin, Estats Units d'Amèrica)) ; Porti i Pujal, Marc (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Miranda, Enrique Alberto (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Nafría i Maqueda, Montserrat (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Aymerich Humet, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Overcoming challenges associated with implementation of resistive random access memory technology for non-volatile information storage requires identifying the material characteristics responsible for resistive switching. [...]
2012 - 10.1063/1.4765342
Applied physics letters, Vol. 101 (2012) , p. 193502-1/193502-5  
7.
5 p, 1.2 MB Enhanced pinning in superconducting thin films with graded pinning landscapes / Motta, M. (Universidade Federal de Sao Carlos. Departamento de Física) ; Colauto, F. (Universidade Federal de Sao Carlos. Departamento de Física) ; Ortiz Vargas, Walter Andrés (Universidade Federal de Sao Carlos. Departamento de Física) ; Fritzsche, J. (Chalmers University of Technology. Department of Applied Physics) ; Cuppens, Jo (INPAC – Institute for Nanoscale Physics and Chemistry) ; Gillijns, W. (INPAC – Institute for Nanoscale Physics and Chemistry) ; Moshchalkov, V. V. (Katholieke Universiteit Leuven. Laboratorium voor Vaste–Stoffysica en Magnetisme) ; Johansen, T. H. (University of Wollongong. Institute for Superconducting and Electronic Materials) ; Sánchez Moreno, Álvaro (Universitat Autònoma de Barcelona. Departament de Física) ; Silhanekz, A. V. (Université de Liège. Département de Physique)
A graded distribution of antidots in superconducting a-Mo79Ge21 thin films has been investigated by magnetization and magneto-optical imaging measurements. The pinning landscape has maximum density at the sample border, decreasing linearly towards the center. [...]
2013 - 10.1063/1.4807848
Applied physics letters, Vol. 102, Issue 21 (May 2013) , p. 212601-1/212601-4  
8.
5 p, 993.1 KB Grain boundaries as preferential sites for Resistive Switching in the HfO2 RRAM structures / Lanza Martínez, Mario (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Zhang, K. (Peking University. Department of Electronics) ; Porti i Pujal, Marc (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Nafría i Maqueda, Montserrat (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Shen, Z. Y. (Peking University. Department of Electronics) ; Liu, L. F. (Peking University. Institute of Microelectronics) ; Kang, J. F. (Peking University. Institute of Microelectronics) ; Gilmer, D. (SEMATECH (Austin, Estats Units d'Amèrica)) ; Bersuker, G. (SEMATECH (Austin, Estats Units d'Amèrica))
Resistive switching (RS) phenomenon in the HfO2 dielectric has been indirectly observed at device level in previous studies using metal-insulator-metal structures, but its origin remains unclear. In this work, using the enhanced conductive atomic force microscope (ECAFM), we have been able to obtain in situ direct observation of RS with nanometric resolution. [...]
2012 - 10.1063/1.3697648
Applied physics letters, Vol. 100, Issue 12 (March 2012) , p. 123508-1-123508-4  
9.
6 p, 1.7 MB Nanomechanical switches based on metal-insulator-metal capacitors from a standard complementary-metal-oxide semiconductor technology / Muñoz Gamarra, Jose Luis (Universitat Autònoma de Barcelona. Departament de Enginyeria Electrònica) ; Uranga del Monte, Aránzazu (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Barniol i Beumala, Núria (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
We report experimental demonstrations of contact-mode nano-electromechanical switches obtained using a capacitor module based on metal-insulator-metal configuration of a standard commercial complementary metal oxide semiconductor technology. [...]
2014 - 10.1063/1.4882918
Applied physics letters, Vol. 104, Issue 24 (June 2014) , p. 243105-1/243105-5  
10.
5 p, 1.3 MB Modeling of hysteretic Schottky diode-like conduction in Pt/BiFeO3/SrRuO3 switches / Miranda, Enrique Alberto (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Jiménez Jiménez, David (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Tsurumaki-Fukuchi, A. (National Institute of Advanced Industrial Science and Technology (AIST)) ; Blasco, J. (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Yamada, H. (National Institute of Advanced Industrial Science and Technology (AIST)) ; Suñé, Jordi, 1963- (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Sawa, A. (National Institute of Advanced Industrial Science and Technology (AIST))
The hysteresis current-voltage (I-V) loops in Pt/BiFeO3/SrRuO3 structures are simulated using a Schottky diode-like conduction model with sigmoidally varying parameters, including series resistance correction and barrier lowering. [...]
2014 - 10.1063/1.4894116
Applied physics letters, Vol. 105 (August 2014) , p. 82904-01/82904-04  

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