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Nguyen T, Fleming Y, Bender P, Grysan P, Valle N, El Adib B, Adjeroud N, Arl D, Emo M, Ghanbaja J, Michels A, Polesel-Maris J. Low-Temperature Growth of AlN Films on Magnetostrictive Foils for High-Magnetoelectric-Response Thin-Film Composites. ACS APPLIED MATERIALS & INTERFACES 2021; 13:30874-30884. [PMID: 34157227 DOI: 10.1021/acsami.1c08399] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This study reports a strong ME effect in thin-film composites consisting of nickel, iron, or cobalt foils and 550 nm thick AlN films grown by PE-ALD at a (low) temperature of 250 °C and ensuring isotropic and highly conformal coating profiles. The AlN film quality and the interface between the film and the foils are meticulously investigated by means of high-resolution transmission electron microscopy and the adhesion test. An interface (transition) layer of partially amorphous AlxOy/AlOxNy with thicknesses of 10 and 20 nm, corresponding to the films grown on Ni, Fe, and Co foils, is revealed. The AlN film is found to be composed of a mixture of amorphous and nanocrystalline grains at the interface. However, its crystallinity is improved as the film grew and shows a highly preferred (002) orientation. High self-biased ME coefficients (αME at a zero-bias magnetic field) of 3.3, 2.7, and 3.1 V·cm-1·Oe-1 are achieved at an off-resonance frequency of 46 Hz in AlN/Ni thin-film composites with different Ni foil thicknesses of 7.5, 15, and 30 μm, respectively. In addition, magnetoelectric measurements have also been carried out in composites made of 550 nm thick films grown on 12.5 μm thick Fe and 15 μm thick Co foils. The maximum magnetoelectric coefficients of AlN/Fe and AlN/Co composites are 0.32 and 0.12 V·cm-1·Oe-1, measured at 46 Hz at a bias magnetic field (Hdc) of 6 and 200 Oe, respectively. The difference of magnetoelectric transducing responses of each composite is discussed according to interface analysis. We report a maximum delivered power density of 75 nW/cm3 for the AlN/Ni composite with a load resistance of 200 kΩ to address potential energy harvesting and electromagnetic sensor applications.
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Affiliation(s)
- Tai Nguyen
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, Luxembourg
- Department of Physics and Materials Science, University of Luxembourg, Campus Limpertsberg, 162 Avenue de la Faïencerie, L-1511 Luxembourg, Luxembourg
| | - Yves Fleming
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, Luxembourg
| | - Philipp Bender
- Department of Physics and Materials Science, University of Luxembourg, Campus Limpertsberg, 162 Avenue de la Faïencerie, L-1511 Luxembourg, Luxembourg
| | - Patrick Grysan
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, Luxembourg
| | - Nathalie Valle
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, Luxembourg
| | - Brahime El Adib
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, Luxembourg
| | - Noureddine Adjeroud
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, Luxembourg
| | - Didier Arl
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, Luxembourg
| | - Mélanie Emo
- Université de Lorraine, CNRS, Institut Jean Lamour, UMR 7198, F-54000 Nancy, France
| | - Jaafar Ghanbaja
- Université de Lorraine, CNRS, Institut Jean Lamour, UMR 7198, F-54000 Nancy, France
| | - Andreas Michels
- Department of Physics and Materials Science, University of Luxembourg, Campus Limpertsberg, 162 Avenue de la Faïencerie, L-1511 Luxembourg, Luxembourg
| | - Jérôme Polesel-Maris
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, Luxembourg
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Abstract
Magnetic nanowires are attractive materials because of their morphology-dependent remarkable properties suitable for various advanced technologies in sensing, data storage, spintronics, biomedicine and microwave devices, etc. The recent advances in synthetic strategies and approaches for the fabrication of complex structures, such as parallel arrays and 3D networks of one-dimensional nanostructures, including nanowires, nanotubes, and multilayers, are presented. The simple template-assisted electrodeposition method enables the fabrication of different nanowire-based architectures with excellent control over geometrical features, morphology and chemical composition, leading to tunable magnetic, magneto-transport and thermoelectric properties. This review article summarizing the work carried out at UCLouvain focuses on the magnetic and spin-dependent transport properties linked to the material and geometrical characteristics.
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Basov S, Elissalde C, Simon Q, Maglione M, Castro-Chavarria C, de Beauvoir TH, Payan S, Temst K, Lazenka V, Andrei Antohe V, de Sá PMP, Sallagoity D, Piraux L. Simple synthesis and characterization of vertically aligned Ba 0.7Sr 0.3TiO 3-CoFe 2O 4 multiferroic nanocomposites from CoFe 2 nanopillar arrays. NANOTECHNOLOGY 2017; 28:475707. [PMID: 28961144 DOI: 10.1088/1361-6528/aa9016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A new strategy to elaborate (1-3) type multiferroic nanocomposites with controlled dimensions and vertical alignment is presented. The process involves a supported nanoporous alumina layer as a template for growth of free-standing and vertically aligned CoFe2 nanopillars using a room temperature pulsed electrodeposition process. Ba0.70Sr0.30TiO3-CoFe2O4 multiferroic nanocomposites were grown through direct deposition of Ba0.7Sr0.3TiO3 films by radio-frequency sputtering on the top surface of the pillar structure, with in situ simultaneous oxidation of CoFe2 nanopillars. The vertically aligned multiferroic nanocomposites were characterized using various techniques for their structural and physical properties. The large interfacial area between the ferrimagnetic and ferroelectric phases leads to a magnetoelectric voltage coefficient as large as ∼320 mV cm-1 Oe-1 at room temperature, reaching the highest values reported so far for vertically architectured nanocomposite systems. This simple method has great potential for large-scale synthesis of many other hybrid vertically aligned multiferroic heterostructures.
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Affiliation(s)
- Sergey Basov
- Institut de Chimie de la Matière Condensée de Bordeaux, Université de Bordeaux, UPR-CNRS 9048, Avenue du Docteur Schweitzer 87, F-33600 Pessac, France. Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Croix du Sud 1, B-1348 Louvain-la-Neuve, Belgium
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