Depósito Digital de Documentos de la UAB Encontrados 13 registros  1 - 10siguiente  ir al registro: La búsqueda tardó 0.02 segundos. 
1.
13 p, 1.2 MB Acoustic phonon propagation in ultra-thin Si membranes under biaxial stress field / Graczykowski, Bartlomiej (Institut Català de Nanociència i Nanotecnologia) ; Gomis Bresco, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia) ; Reparaz, Juan Sebastián (Institut Català de Nanociència i Nanotecnologia) ; Shchepetov, Andrey (VTT Technical Research Centre of Finland) ; Prunnila, Mika (VTT Technical Research Centre of Finland) ; Ahopelto, Jouni (VTT Technical Research Centre of Finland) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia)
We report on stress induced changes in the dispersion relations of acoustic phonons propagating in 27 nm thick single crystalline Si membranes. The static tensile stress (up to 0. 3 GPa) acting on the Si membranes was achieved using an additional strain compensating silicon nitride frame. [...]
2014 - 10.1088/1367-2630/16/7/073024
New Journal of Physics, Vol. 16 (July 2014) , art. 73024  
2.
16 p, 2.2 MB Metallic thin films on stepped surfaces : Lateral scattering of quantum well states / Schiller, F. (Universidad del País Vasco. Centro de Física de Materiales) ; El-Fattah, Z.M. Abd (Al-Azhar University. Physics Department) ; Schirone, Stephano (Institut Català de Nanociència i Nanotecnologia) ; Lobo Checa, J. (Universidad del País Vasco. Centro de Física de Materiales) ; Urdanpilleta, M. (Universidad del País Vasco. Departamento de Física Aplicada I) ; Ruiz Osés, M. (Universidad del País Vasco. Departamento de Física Aplicada I) ; Cordón, J. (Universidad del País Vasco. Departamento de Física Aplicada I) ; Corso, M. (Universidad del País Vasco. Centro de Física de Materiales) ; Sánchez Portal, D. (Universidad del País Vasco. Centro de Física de Materiales) ; Mugarza, Aitor (Institut Català de Nanociència i Nanotecnologia) ; Ortega, J.E. (Universidad del País Vasco. Centro de Física de Materiales)
Quantum well states of Ag films grown on stepped Au(111) surfaces are shown to undergo lateral scattering, in analogy with surface states of vicinal Ag(111). Applying angle resolved photoemission spectroscopy we observe quantum well bands with zone-folding and gap openings driven by surface/interface step lattice scattering. [...]
2014 - 10.1088/1367-2630/16/12/123025
New Journal of Physics, Vol. 16 (December 2014) , art. 123025  
3.
9 p, 2.0 MB Structure and electronic states of vicinal Ag(111) surfaces with densely kinked steps / Ortega, J. Enrique (Universidad del País Vasco) ; Vasseur, Guillaume (Donostia International Physics Centre) ; Piquero Zulaica, Ignacio (Centro de Física de Materiales CSIC) ; Matencio, Sonia (Institut Català de Nanociència i Nanotecnologia) ; Valbuena, Miguel Ángel (Institut Català de Nanociència i Nanotecnologia) ; Rault, Julien E. (Synchrotron SOLEIL) ; Schiller, Frederik (Centro de Física de Materiales CSIC) ; Corso, Martina (Centro de Física de Materiales CSIC) ; Mugarza, Aitor (Institut Català de Nanociència i Nanotecnologia) ; Lobo Checa, Jorge (Universidad de Zaragoza. Departamento de Física de la Materia Condensada)
Vicinal surfaces exhibiting arrays of atomic steps are frequently investigated due to their diverse physical-chemical properties and their use as growth templates. However, surfaces featuring steps with a large number of low-coordinated kink-atoms have been widely ignored, despite their higher potential for chemistry and catalysis. [...]
2018 - 10.1088/1367-2630/aacbb7
New Journal of Physics, Vol. 20 (July 2018) , art. 73010  
4.
12 p, 8.4 MB Investigation of magneto-structural phase transition in FeRh by reflectivity and transmittance measurements in visible and near-infrared spectral region / Saidl, V. (Univerzita Karlova (Praga, República Txeca)) ; Brajer, M. (Univerzita Karlova (Praga, República Txeca)) ; Horák, L. (Univerzita Karlova (Praga, República Txeca)) ; Reichlová, H. (Akademie věd České republiky) ; Výborný, K. (Akademie věd České republiky) ; Veis, M. (Univerzita Karlova (Praga, República Txeca)) ; Janda, T. (Univerzita Karlova (Praga, República Txeca)) ; Trojánek, F. (Univerzita Karlova (Praga, República Txeca)) ; Maryško, M. (Akademie věd České republiky) ; Fina Martínez, Ignasi (Institut Català de Nanociència i Nanotecnologia) ; Martí Rovirosa, Xavier (Institut Català de Nanociència i Nanotecnologia) ; Jungwirth, T. (The University of Nottingham) ; Němec, P. (Univerzita Karlova (Praga, República Txeca))
Magneto-structural phase transition in FeRh epitaxial layers was studied optically. It is shown that the transition between the low-temperature antiferromagnetic phase and the high-temperature ferromagnetic phase is accompanied by a rather large change of the optical response in the visible and near-infrared spectral ranges. [...]
2016 - 10.1088/1367-2630/18/8/083017
New Journal of Physics, Vol. 18 (August 2016) , art. 083017  
5.
17 p, 934.7 KB Beating noise with abstention in state estimation / Gendra Casalí, Bernat (Universitat Autònoma de Barcelona. Departament de Física) ; Ronco Bonvehi, Elio (Universitat Autònoma de Barcelona. Departament de Física) ; Calsamiglia Costa, John (Universitat Autònoma de Barcelona. Departament de Física) ; Muñoz Tapia, Ramon (Universitat Autònoma de Barcelona. Departament de Física) ; Bagán Capella, Emili (Universitat Autònoma de Barcelona. Departament de Física)
We address the problem of estimating pure qubit states with nonideal (noisy) measurements in the multiple-copy scenario, where the data consist of a number N of identically prepared qubits. We show that the average fidelity of the estimates can increase significantly if the estimation protocol allows for inconclusive answers, or abstentions. [...]
2012 - 10.1088/1367-2630/14/10/105015
New Journal of Physics, Vol. 14 (October 2012) , art. 105015  
6.
9 p, 718.2 KB A quasistatic magnetic cloak / Souc, Ján (Slovak Academy of Sciences. Institute of Electrical Engineering) ; Solovyov, Mykola (Slovak Academy of Sciences. Institute of Electrical Engineering) ; Gömöry, Fedor (Slovak Academy of Sciences. Institute of Electrical Engineering) ; Prat Camps, Jordi (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)
Cloaking a three-dimensional object in free space from electromagnetic waves has recently become a theoretical possibility, although practical implementations can only be made in reduced schemes. If static fields are involved, requirements are less restrictive and some practical realizations have been possible. [...]
2013 - 10.1088/1367-2630/15/5/053019
New Journal of Physics, Vol. 15 (May 2013) , art. 053019  
7.
34 p, 869.4 KB Quantumness of correlations, quantumness of ensembles and quantum data hiding / Piani, Marco (University of Strathclyde. Department of Physics) ; Narasimhachar, Varun (University of Calgary. Department of Physics and Astronomy.) ; Calsamiglia Costa, John (Universitat Autònoma de Barcelona. Departament de Física)
We study the quantumness of correlations for ensembles of bi- and multi-partite systems and relate it to the task of quantum data hiding. Quantumness is here intended in the sense of minimum average disturbance under local measurements. [...]
2014 - 10.1088/1367-2630/16/11/113001
New Journal of Physics, Vol. 16 (November 2014) , art. 113001  
8.
8 p, 1.1 MB Stimulated Raman adiabatic passage with two-color x-ray pulses / Picón, Antonio (Argonne National Laboratory (USA)) ; Mompart Penina, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ; Southworth, Stephen H. (Argonne National Laboratory (USA))
Recent techniques in x-ray free electron lasers allow the generation of highly coherent, intense x-ray pulses with time lengths on the order of femtoseconds. Here we explore the possibilities of using such x-ray pulses to control matter based on coherence. [...]
2015 - 10.1088/1367-2630/17/8/083038
New Journal of Physics, Vol. 17 (August 2015) , art. 083038  
9.
11 p, 1.5 MB Thermometry precision in strongly correlated ultracold lattice gases / Mehboudi, Mohammad (Universitat Autònoma de Barcelona. Departament de Física) ; Moreno Cardoner, María (Queen's University. Centre for Theoretical Atomic, Molecular and Optical Physics) ; De Chiara, Gabriele (Queen's University. Centre for Theoretical Atomic, Molecular and Optical Physics) ; Sanpera Trigueros, Anna (Universitat Autònoma de Barcelona. Departament de Física)
The precise knowledge of the temperature of an ultracold lattice gas simulating a strongly correlated system is a question of both fundamental and technological importance. Here, we address such question by combining tools from quantum metrology together with the study of the quantum correlations embedded in the system at finite temperatures. [...]
2015 - 10.1088/1367-2630/17/5/055020
New Journal of Physics, Vol. 17 (May 2015) , art. 55020  
10.
7 p, 1.1 MB Geometrically controlled ratchet effect with collective vortex motion / Rouco Gómez, Víctor (Institut de Ciència de Materials de Barcelona) ; Palau Masoliver, Anna (Institut de Ciència de Materials de Barcelona) ; Monton, Carlos (University of California) ; 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) ; Obradors, Xavier (Institut de Ciència de Materials de Barcelona) ; Puig i Molina, Mª Teresa (Institut de Ciència de Materials de Barcelona)
Rectified flux motion arising from the collective effect of many interacting vortices is obtained in a specially designed superconducting device. Ratchet structures with different asymmetric pinning potentials are generated by tuning the size, depth, and distribution of triangular blind-antidots in a high-temperature superconducting film. [...]
2015 - 10.1088/1367-2630/17/7/073022
New Journal of Physics, Vol. 17 (July 2015) , art. 73022  

Depósito Digital de Documentos de la UAB : Encontrados 13 registros   1 - 10siguiente  ir al registro:
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