Articles

Articles 304 records found  beginprevious295 - 304  jump to record: Search took 0.00 seconds. 
295.
3 p, 1.1 MB Domain matching epitaxy of ferrimagnetic CoFe2O4 thin films on Sc2O3/Si(111) / Sánchez Barrera, Florencio (Institut de Ciència de Materials de Barcelona) ; Bachelet, Romain (Institut de Ciència de Materials de Barcelona) ; Coux, P. de (Centre national de la recherche scientifique (França). Centre d'élaboration de Matériaux et d'Études Structurales) ; Warot-Fonrose, Bénédicte (Centre national de la recherche scientifique (França). Centre d'élaboration de Matériaux et d'Études Structurales) ; Skumryev, Vassil (Universitat Autònoma de Barcelona. Departament de Física) ; Tarnawska, L. (Leibniz-Institut für innovative Mikroelektronik. Innovations for high performance) ; Zaumseil, P. (Leibniz-Institut für innovative Mikroelektronik. Innovations for high performance) ; Schroeder, T. (Leibniz-Institut für innovative Mikroelektronik. Innovations for high performance) ; Fontcuberta i Griñó, Josep (Institut de Ciència de Materials de Barcelona) ; American Physical Society
Ferrimagnetic spinel CoFe2O4 (CFO) films are integrated with Si(111) using Sc2O3 buffer layers. The huge lattice mismatch (17%) between CFO and Sc2O3 is accommodated by domain matching, and CFO grows epitaxially with (111) out-of-plane orientation and coexistence of A- and B-type in-plane crystal variants. [...]
2011 - 10.1063/1.3663216
Applied Physics Letters, Vol. 99, Issue 21 (November 2011) , p. 211910/1-211910/3  
296.
3 p, 409.4 KB Continuously graded anisotropy in single (Fe53Pt47)100−xCux films / Zha, Chaolin (Kungl. Tekniska högskolann. Materialfysik) ; Dumas, Randy K. (University of Gothenburg. Department of Physic) ; Fang, Yeyu (Kungl. Tekniska högskolann. Materialfysik) ; Bonanni, Valentina (Kungl. Tekniska högskolann. Materialfysik) ; Nogués i Sanmiquel, Josep (Institut Català de Nanociència i Nanotecnologia) ; Aakerman, Johan (Kungl. Tekniska högskolann. Materialfysik) ; American Physical Society
We report on continuously graded anisotropy. During deposition, a compositional gradient is achieved by varying the Cu concentration from Cu-rich (Fe53Pt47)70Cu30 to Cu-free Fe53Pt47. The anisotropy gradient is then realized after annealing using the composition dependence of the low-anisotropy (A1) to high-anisotropy (L10) ordering temperature. [...]
2010 - 10.1063/1.3505521
Applied Physics Letters, Vol. 97, Issue 18 (November 2010) , p. 182504/1-182504/3  
297.
3 p, 246.0 KB Epitaxial stabilization of ε-Fe2O3 (00l) thin films on SrTiO3 (111) / Gich i Garcia, Martí (Institut de Ciència de Materials de Barcelona) ; Gàzquez Alabart, Jaume (Oak Ridge National Laboratory. Materials Science and Technology Division) ; Roig i Serra, Anna (Institut de Ciència de Materials de Barcelona) ; American Physical Society
Thin films of the metastable and elusive ε-Fe2O3 have been epitaxially stabilized on SrTiO3 (111) substrates. The ε-Fe2O3 films present a (001) orientation perpendicular to the substrate and three in-plane domains measuring a few nanometers and showing atomically sharp interfaces. [...]
2010 - 10.1063/1.3360217
Applied Physics Letters, Vol. 96, Issue 11 (March 2010) , p. 112508/1-112508/3  
298.
3 p, 180.1 KB Emergence of ferromagnetism in antiferromagnetic TbMnO3 by epitaxial strain / Martí Rovirosa, Xavier (Institut de Ciència de Materials de Barcelona) ; Skumryev, Vassil (Universitat Autònoma de Barcelona. Departament de Física) ; Ferrater Martorell, Cèsar (Universitat de Barcelona. Departament de Física Aplicada i Òptica) ; García-Cuenca Varona, María Victoria (Universitat de Barcelona. Departament de Física Aplicada i Òptica) ; Varela Fernández, Manuel, 1956- (Universitat de Barcelona. Departament de Física Aplicada i Òptica) ; Sánchez Barrera, Florencio (Institut de Ciència de Materials de Barcelona) ; Fontcuberta i Griñó, Josep (Institut de Ciència de Materials de Barcelona) ; American Physical Society
We show that in oxide thin films of spiral antiferromagnetic orthorhombic TbMnO3, ferromagnetism emerges resulting from epitaxially induced strain. The unit cell volume can be tuned (contracting up to a 2%) by varying thickness and deposition conditions; it is found that the ferromagnetic response correlates with the unit cell deformation. [...]
2010 - 10.1063/1.3443714
Applied Physics Letters, Vol. 96, Issue 22 (May 2010) , p. 222505/1-222505/3  
299.
3 p, 1.7 MB Out-of-plane magnetic patterning on austenitic stainless steels using plasma nitriding / Menéndez Dalmau, Enric (Katholieke Universiteit te Leuven (1970- ). Instituut voor Kern- en Stralingsfysica) ; Stinville, J.-C. (Université de Poitiers. Institut pour la Recherche et Ingénierie en Matériaux Mécanique et Energétique pour les Transports, l’Energie et l’Environnement) ; Tromas, C. (Université de Poitiers. Institut pour la Recherche et Ingénierie en Matériaux Mécanique et Energétique pour les Transports, l’Energie et l’Environnement) ; Templier, C. (Université de Poitiers. Institut pour la Recherche et Ingénierie en Matériaux Mécanique et Energétique pour les Transports, l’Energie et l’Environnement) ; Villechaise, P. (Université de Poitiers. Institut pour la Recherche et Ingénierie en Matériaux Mécanique et Energétique pour les Transports, l’Energie et l’Environnement) ; Rivière, J.-P. (Université de Poitiers. Institut pour la Recherche et Ingénierie en Matériaux Mécanique et Energétique pour les Transports, l’Energie et l’Environnement) ; Drouet, M. (Université de Poitiers. Institut pour la Recherche et Ingénierie en Matériaux Mécanique et Energétique pour les Transports, l’Energie et l’Environnement) ; Martinavicius, A. (Institut für Ionenstrahlphysik und Materialforschung (Germany)) ; Abrasonis, G. (Institut für Ionenstrahlphysik und Materialforschung (Germany)) ; Fassbender, J. (Institut für Ionenstrahlphysik und Materialforschung (Germany)) ; Baró, M.D. (Universitat Autònoma de Barcelona. Departament de Física) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ; Nogués i Sanmiquel, Josep (Institut Català de Nanociència i Nanotecnologia) ; American Physical Society
A correlation between the grain orientation and the out-of-plane magnetic properties of nitrogen-enriched polycrystalline austenitic stainless steel surface is performed. Due to the competition between the magnetocrystalline anisotropy, the exchange and dipolar interactions, and the residual stresses induced by nitriding, the resulting effective magnetic easy-axis can lay along unusual directions. [...]
2010 - 10.1063/1.3453567
Applied Physics Letters, Vol. 96, Issue 24 (June 2010) , p. 242509/1-242509/3  
300.
4 p, 421.2 KB Magnetization reversal by electric-field decoupling of magnetic and ferroelectric domain walls in multiferroic-based heterostructures / Skumryev, Vassil (Universitat Autònoma de Barcelona. Departament de Física) ; Laukhin, Vladimir (Institut de Ciència de Materials de Barcelona) ; Fina Martínez, Ignasi (Institut de Ciència de Materials de Barcelona) ; Martí Rovirosa, Xavier (Institut de Ciència de Materials de Barcelona) ; Sánchez Barrera, Florencio (Institut de Ciència de Materials de Barcelona) ; Gospodinov, M. (Institut po fizika na tvŭrdoto ti︠a︡lo (Bŭlgarska akademii︠a︡ na naukite)) ; Fontcuberta i Griñó, Josep (Institut de Ciència de Materials de Barcelona) ; American Physical Society
We demonstrate that the magnetization of a ferromagnet in contact with an antiferromagnetic multi-ferroic(LuMnO3)can be speedily reversed by electric-field pulsing, and the sign of the magnetic exchange bias can switch and recover isothermally. [...]
2011 - 10.1103/PhysRevLett.106.057206
Physical review letters, Vol. 106, Issue 5 (Feb. 2011) , p. 057206/1-057206/4  
301.
3 p, 358.5 KB First-order reversal curve analysis of graded anisotropy FePtCu films / Bonanni, Valentina (Kungl. Tekniska högskolann. Materialfysik) ; Fang, Yeyu (Kungl. Tekniska högskolann. Materialfysik) ; Dumas, Randy K. (University of Gothenburg. Department of Physic) ; Zha, Chaolin (Kungl. Tekniska högskolann. Materialfysik) ; Bonetti, Stefano (Kungl. Tekniska högskolann. Materialfysik) ; Nogués i Sanmiquel, Josep (Institut Català de Nanociència i Nanotecnologia) ; Aakerman, Johan (Kungl. Tekniska högskolann. Materialfysik) ; American Physical Society
The reversal mechanisms of graded anisotropy FePtCu films have been investigated by alternating gradient magnetometer AGM and magneto-optical Kerr effect MOKE measurements with first-order reversal curve FORC techniques. [...]
2010 - 10.1063/1.3515907
Applied Physics Letters, Vol. 97, Issue 20 (November 2010) , p. 202501-202503  
302.
4 p, 753.3 KB Quantum-trajectory approach to time-dependent transport in Mesoscopic systems with electron-electron interactions / Oriols Pladevall, Xavier (Universitat Autònoma de Barcelona. Departament d’Enginyeria Electrònica) ; American Physical Society
It is proved that many-particle Bohm trajectories can be computed from single-particle time-dependent Schrödinger equations. From this result, a practical algorithm for the computation of transport properties of many-electron systems with exchange and Coulomb correlations is derived. [...]
2007 - 10.1103/PhysRevLett.98.066803
Physical review letters, Vol. 98, Issue 6 (February 2007) , p. 1-4  
303.
4 p, 1.2 MB Imprinting vortices into antiferromagnets / Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ; Buchanan, K. S. (Argonne National Laboratory. Materials Science Division) ; Novosad, V. (Argonne National Laboratory. Materials Science Division) ; Hoffmann, Axel (Argonne National Laboratory. Materials Science Division) ; Salazar-Alvarez, G. (Universitat Autònoma de Barcelona. Departament de Física) ; Bollero, A. (SPINTEC (Spin Electronics Research)) ; Baró, M.D. (Universitat Autònoma de Barcelona. Departament de Física) ; Dieny, B. (SPINTEC (Spin Electronics Research)) ; Nogués i Sanmiquel, Josep (Institut Català de Nanociència i Nanotecnologia) ; American Physical Society
The effect of imprinting symmetric and displaced vortex structures into an antiferromagnetic material is investigated in micron-sized disks consisting of exchange coupled ferromagnetic-antiferromagnetic bilayers. [...]
2006 - 10.1103/PhysRevLett.97.067201
Physical review letters, Vol. 97, Issue 6 (August 2006) , p. 1-4  
304.
3 p, 435.4 KB Monolithic mass sensor fabricated using a conventional technology with attogram resolution in air conditions / Verd Martorell, Jaume (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Uranga del Monte, Aránzazu (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Abadal Berini, Gabriel (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Teva Meroño, Jordi (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Torres Canals, Francisco (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Pérez Murano, Francesc (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Fraxedas i Calduch, Jordi (Institut de Ciència de Materials de Barcelona) ; Esteve Tinto, Jaume (Universitat Autònoma de Barcelona. Departament de Enginyeria Electrònica) ; Barniol i Beumala, Núria (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; American Physical Society
Monolithic mass sensors for ultrasensitive mass detection in air conditions have been fabricated using a conventional 0. 35 μm complementary metal-oxide-semiconductor (CMOS) process. The mass sensors are based on electrostatically excited submicrometer scale cantilevers integrated with CMOS electronics. [...]
2007 - 10.1063/1.2753120
Applied Physics Letters, Vol. 91, Issue 1 (July 2007) , p. 013501/1-013501/3  

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