SPIN-PORICS: Merging nanoporous materials with energy-efficient spintronics
SPIN-PORICS is a Consolidator Grant from the European Research Council (648454).

This Project aims to integrate engineered nanoporous materials into novel energy-efficient spintronic applications. Magnetic storage and magneto-electronic devices are conventionally controlled by means of magnetic fields (via electromagnetic induction) or using spin-polarized electric currents (spin-transfer torque). Both principles involve significant energy loss by heat dissipation (Joule effect). The replacement of electric current with electric field would drastically reduce the overall power consumption. Strain-mediated magneto-electric coupling in piezoelectric-magnetostrictive bilayers might appear a proper strategy to achieve this goal. However, this approach is not suitable in spintronics because of the clamping effects with the substrate, need of epitaxial interfaces and risk of fatigue-induced mechanical failure. The exciting possibility to control ferromagnetism of metals and semiconductors directly with electric field (without strain) has been recently reported, but most significant effects occur below 300 K and only in ultra-thin films or nanoparticles. This Project tackles the development of a new type of nanocomposite material, comprising an electrically conducting or semiconducting nanoporous layer filled with a suitable dielectric material, where the magnetic properties of the metal/semiconductor will be largely tuned at room temperature (RT) by simply applying a voltage, via electric charge accumulation. The porous layer will consist of specific alloys (Cu-Ni or Fe-Rh) or oxide diluted magnetic semiconductors, where surface magnetic properties have been recently reported to be sensitive to electric field at RT. Based on these new materials, three technological applications are envisaged: electrically-assisted magnetic recording, voltage-driven switching of magnetic random-access memories and spin field-effect transistors. The obtained results are likely to open new paradigms in the field of spintronics and could be of high economic transcendence.

Estadístiques d'ús Els més consultats
Darreres entrades:
2018-04-19
11:56
Tunable magnetism in nanoporous CuNi alloys by reversible voltage-driven element-selective redox processes / Quintana, A. (Universitat Autònoma de Barcelona. Departament de Física) ; Menéndez Dalmau, Enric (Universitat Autònoma de Barcelona. Departament de Física) ; Isarain-Chávez, E. (Universitat Autònoma de Barcelona. Departament de Física) ; Fornell Beringues, Jordina (Universitat Autònoma de Barcelona. Departament de Física) ; Solsona Mateos, Pau (Universitat Autònoma de Barcelona. Departament de Física) ; Baró, M. D. (Universitat Autònoma de Barcelona. Departament de Física) ; Nogués i Sanmiquel, Josep (Institut Català de Nanociència i Nanotecnologia) ; Pellicer Vilà, Eva M. (Eva Maria) (Universitat Autònoma de Barcelona. Departament de Física) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Voltage-driven manipulation of magnetism in electrodeposited 200 nm thick nanoporous single-phase solid solution Cu20 Ni80 (at%) alloy films (with sub 10 nm pore size) is accomplished by controlled reduction-oxidation (i. [...]
2018 - 10.1002/smll.201704396
Small, Vol. 14, issue 21 (May 2018) , e1704396  
2018-04-19
11:53
7 p, 5.9 MB Hidden magnetic states emergent under electric field, in a room temperature composite magnetoelectric multiferroic / Clarkson, J. D. (University of California (Berkeley). Department of Materials Science and Engineering) ; Fina Martínez, Ignasi (Institut de Ciència de Materials de Barcelona) ; Liu, Z. Q. (University of California (Berkeley). Department of Materials Science and Engineering) ; Lee, Y. (University of California (Berkeley). Department of Materials Science and Engineering) ; Kim, J. (California State University. Department of Physics) ; Frontera, C. (Institut de Ciència de Materials de Barcelona) ; Cordero Edwards, Rohini Kumara (Institut Català de Nanociència i Nanotecnologia) ; Wisotzki, S. (Max Planck Institute of Microstructure Physics) ; Sáncherz, F. (Institut de Ciència de Materials de Barcelona) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ; Hsu, S. L. (University of California (Berkeley). Department of Materials Science and Engineering) ; Ko, C. (University of California (Berkeley). Department of Materials Science and Engineering) ; Aballe, Lucía (ALBA Laboratori de Llum de Sincrotró) ; Foerster, Michael (ALBA Laboratori de Llum de Sincrotró) ; Wu, J. (University of California (Berkeley). Department of Materials Science and Engineering) ; Christen, H. M. (Oak Ridge National Laboratory. Center for Nanophase Materials Sciences) ; Heron, J. T. (Cornell University. Department of Materials Science and Engineering) ; Schlom, D. G. (Cornell University. Department of Materials Science and Engineering) ; Salahuddin, S. (University of California (Berkeley). Department of Electrical Engineering and Computer Science) ; Kioussis, N. (California State University. Department of Physics) ; Fontcuberta i Griñó, Josep (Institut de Ciència de Materials de Barcelona) ; Martí, X. (University of California (Berkeley). Department of Materials Science and Engineering) ; Ramesh, R. (University of California (Berkeley). Department of Materials Science and Engineering)
The ability to control a magnetic phase with an electric field is of great current interest for a variety of low power electronics in which the magnetic state is used either for information storage or logic operations. [...]
2017 - 10.1038/s41598-017-13760-y
Scientific reports, Vol. 7 (2017) , art. 15460  
2018-04-19
11:47
6 p, 835.1 KB Ferromagnetic-like behaviour in bismuth ferrite films prepared by electrodeposition and subsequent heat treatment / Bilican, Doga (Universitat Autònoma de Barcelona. Departament de Física) ; Menéndez Dalmau, Enric (Universitat Autònoma de Barcelona. Departament de Física) ; Solsona Mateos, Pau (Universitat Autònoma de Barcelona. Departament de Física) ; Fornell Beringues, Jordina (Universitat Autònoma de Barcelona. Departament de Física) ; Pellicer Vilà, Eva M. (Eva Maria) (Universitat Autònoma de Barcelona. Departament de Física) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Bismuth ferrite (BiFeO₃) films (10 μm in thickness) are synthesized by electrodeposition from a dimethylformamide bath containing Bi and Fe nitrate salts as precursors followed by heat treatment in air. [...]
2017 - 10.1039/C7RA04375A
RSC advances, Vol. 7, issue 51 (2017) , p. 32133-32138  
2018-04-19
11:26
16 p, 2.9 MB Micelle-assisted electrodeposition of highly mesoporous Fe-Pt nodular films with soft magnetic and electrocatalytic properties / Isarain-Chávez, E. (Universitat Autònoma de Barcelona. Departament de Física) ; Baró, M. D. (Universitat Autònoma de Barcelona. Departament de Física) ; Pellicer Vilà, Eva M. (Eva Maria) (Universitat Autònoma de Barcelona. Departament de Física) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Mesoporous Fe–Pt nodular films (with a regular spatial arrangement of sub-15 nm pores) are grown onto evaporated Au, Cu and Al conductive layers by micelle-assisted electrodeposition from metal chloride salts in the presence of Pluronic P123 tri-block copolymer dissolved in the aqueous electrolytic bath. [...]
2017 - 10.1039/C7NR05561G
Nanoscale, Vol. 9, issue 45 (Dec. 2017) , art. 18081  
2018-04-19
11:19
18 p, 1.8 MB Unraveling the origin of magnetism in mesoporous Cu-doped SnO₂ magnetic semiconductor / Fan, Junpeng (Universitat Autònoma de Barcelona. Departament de Física) ; Menéndez Dalmau, Enric (Universitat Autònoma de Barcelona. Departament de Física) ; Guerrero Hernández, Miguel (Universitat Autònoma de Barcelona. Departament de Física) ; Quintana, A. (Universitat Autònoma de Barcelona. Departament de Física) ; Weschke, Eugen (Helmholtz-Zentrum Berlin für Materialien und Energie) ; Pellicer Vilà, Eva M. (Eva Maria) (Universitat Autònoma de Barcelona. Departament de Física) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
The origin of magnetism in wide-gap semiconductors doped with non-ferromagnetic 3d transition metals still remains intriguing. In this article, insights in the magnetic properties of ordered mesoporous Cu-doped SnO₂ powders, prepared by hard-templating, have been unraveled. [...]
2017 - 10.3390/nano7110348
Nanomaterials, Vol. 7, issue 11 (Nov. 2017) , art. 348  
2018-04-19
10:55
19 p, 256.6 KB Self-templating faceted and spongy single-crystal ZnO nanorods : resistive switching and enhanced piezoresponse / Quintana, A. (Universitat Autònoma de Barcelona. Departament de Física) ; Gómez, Andrés (Institut de Ciència de Materials de Barcelona) ; Baró, M. D. (Universitat Autònoma de Barcelona. Departament de Física) ; Suriñach, Santiago (Suriñach Cornet) (Universitat Autònoma de Barcelona. Departament de Física) ; Pellicer Vilà, Eva M. (Eva Maria) (Universitat Autònoma de Barcelona. Departament de Física) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
A template-free, cost-effective, hydrothermal procedure is used to synthesize large areas of either faceted or spongy self-standing single-crystalline ZnO nanorods (NRs) from electrodeposited Zn films. [...]
2017 - 10.1016/j.matdes.2017.07.039
Materials & design, Vol. 133 (Nov. 2017) , p. 54-61  
2018-04-19
10:38
30 p, 2.4 MB Voltage-induced coercivity reduction in nanoporous alloy films : a boost towards energy-efficient magnetic actuation / Quintana, A. (Universitat Autònoma de Barcelona. Departament de Física) ; Zhang, Jin (Universitat Autònoma de Barcelona. Departament de Física) ; Isarain-Chávez, E. (Universitat Autònoma de Barcelona. Departament de Física) ; Menéndez Dalmau, Enric (Universitat Autònoma de Barcelona. Departament de Física) ; Cuadrado, Ramón (Institut Català de Nanociència i Nanotecnologia) ; Robles, Roberto (Institut Català de Nanociència i Nanotecnologia) ; Baró, M. D. (Universitat Autònoma de Barcelona. Departament de Física) ; Guerrero Hernández, Miguel (Universitat Autònoma de Barcelona. Departament de Física) ; Pané i Vidal, Salvador (Institute of Robotics and Intelligent Systems (Zurich, Suïssa)) ; Nelson, Bradley J. (ETH Zurich. Multi-Scale Robotics Laboratory) ; Muller Jevenois, Carlos (Universitat de Barcelona. Departament de Ciència de Materials i Química Física) ; Ordejón Rontomé, Pablo (Institut Català de Nanociència i Nanotecnologia) ; Nogués i Sanmiquel, Josep (Institut Català de Nanociència i Nanotecnologia) ; Pellicer Vilà, Eva M. (Eva Maria) (Universitat Autònoma de Barcelona. Departament de Física) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Magnetic data storage and magnetically actuated devices are conventionally controlled by magnetic fields generated using electric currents. This involves significant power dissipation by Joule heating effect. [...]
2017 - 10.1002/adfm.201701904
Advanced Functional Materials, Vol. 27, issue 32 (Aug. 2017) , art. 1701904  
2018-04-19
10:31
39 p, 6.3 MB Evaporation-induced self-assembly synthesis of Ni-doped mesoporous SnO₂ thin films with tunable room temperature magnetic properties / Fan, Junpeng (Universitat Autònoma de Barcelona. Departament de Física) ; Guerrero Hernández, Miguel (Universitat Autònoma de Barcelona. Departament de Física) ; Carretero-Genevrier, Adrián (Universite Montpellier. Institut d'Electronique et des Systemes) ; Baró, M.D. (Universitat Autònoma de Barcelona. Departament de Física) ; Suriñach, Santiago (Suriñach Cornet) (Universitat Autònoma de Barcelona. Departament de Física) ; Pellicer Vilà, Eva M. (Eva Maria) (Universitat Autònoma de Barcelona. Departament de Física) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
Mesoporous Ni-doped SnO₂ thin films synthesized from variable [Ni(II)/Sn(IV)] molar ratios (0 : 100, 5 : 95, 10 : 90, 15 : 85 and 20 : 80), thicknesses in the range of 100–150 nm, and average pore sizes lower than 10 nm were obtained through a sol–gel based self-assembly process using Pluronic P-123 as a structure-directing agent. [...]
2017 - 10.1039/C7TC01128H
Journal of materials chemistry C, Vol. 5, issue 22 (2017) , p. 5517-5527  
2018-04-18
16:45
Parametric aqueous electrodeposition study and characterization of Fe–Cu films / Dislaki, Evangelia (Universitat Autònoma de Barcelona. Departament de Física) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ; Pellicer Vilà, Eva M. (Eva Maria) (Universitat Autònoma de Barcelona. Departament de Física)
In this study, FexCu1−x films over a wide composition range (0≤x≤86) were prepared from an aqueous sulfate electrolytic solution using three different complexing agents and variable plating conditions. [...]
2017 - 10.1016/j.electacta.2017.02.092
Electrochimica acta, Vol. 231 (March 2017) , p. 739-748  
2018-04-18
15:39
13 p, 3.5 MB Micelle-assisted electrodeposition of mesoporous Fe-Pt smooth thin films onto various substrates and their electrocatalytic activity towards hydrogen evolution reaction / Isarain-Chávez, E. (Universitat Autònoma de Barcelona. Departament de Física) ; Baró, M. D. (Universitat Autònoma de Barcelona. Departament de Física) ; Alcantara, Carlos (ETH Zurich. Institute of Robotics and Intelligent Systems) ; Pané, Salvador (ETH Zurich. Institute of Robotics and Intelligent Systems) ; Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ; Pellicer Vilà, Eva M. (Eva Maria) (Universitat Autònoma de Barcelona. Departament de Física)
Mesoporous Fe-Pt thin films are obtained by micelle-assisted electrodeposition onto metallic substrates with dissimilar activity (namely, gold, copper, and aluminum seed layers evaporated on Si/Ti) under constant applied potential (E=-1. [...]
2018 - 10.1002/cssc.201701938
ChemSusChem, Vol. 11, issue 2 (Jan. 2018) , p. 367-375