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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Casoli, F.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2022Dewetting Process in Ni-Mn-Ga Shape-Memory Heusler: Effects on Morphology, Stoichiometry and Magnetic Propertiescitations
- 2017Enhanced magnetization and anisotropy in Mn-Ga thin films grown on LSATcitations
- 2015Electrophoretic deposition of bilayer composite films based on CoFe2O4 and Nb-doped PZT
- 2013Charge compensation and magnetic properties in Sr and Cu doped La-Fe perovskitescitations
- 2012Tuning sign and intensity of magnetocaloric effect by co doping NiMnGa alloys
- 2011From direct to inverse giant magnetocaloric effect in Co-doped NiMnGa multifunctional alloyscitations
- 2011From direct to inverse Giant Magnetocaloric Effect in Co-doped NiMnGa multifunctional alloyscitations
- 2008Room-temperature spintronic effects in Alq3-based hybrid devicescitations
- 2008Local modification of magnetism and structure in FePt (001) epitaxial thin films by focused ion beam: Two-dimensional perpendicular patterns
- 2007X-Ray structural investigation of Co/Cu granular multilayers with GMR
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article
Enhanced magnetization and anisotropy in Mn-Ga thin films grown on LSAT
Abstract
<p>Epitaxial thin films of Mn<sub>x</sub>Ga<sub>1-x</sub> (x = 0.70, 0.74) grown on single crystal (LaAlO<sub>3</sub>)<sub>0.3</sub>(Sr<sub>2</sub>TaAlO<sub>6</sub>)<sub>0.7</sub> [LSAT] substrates exhibit an enhanced magnetic moment and magnetic anisotropy in comparison to films of the same composition grown epitaxially on SrTiO<sub>3</sub> [STO] single crystal substrates. Atomic and magnetic force microscopy revealed films exhibiting uniform grains and magnetic domain structures, with only minor differences between the films grown on different substrates. High resolution transmission electron microscopy on the x = 0.74 sample grown on LSAT showed a well-ordered, faceted film structure with the tetragonal c-axis oriented out of the film plane. Further, misfit dislocations, accommodating the lattice mismatch, were evidenced at the film/substrate interface. The out of plane c lattice parameter is larger for all x in the films grown on LSAT, due to the smaller substrate lattice parameter compared to STO. The increase in c generates a larger distortion of the tetragonal lattice which promotes the enhanced magnetization and magnetocrystalline anisotropy. These results indicate that LSAT is a promising substrate for realizing highly tailored magnetic properties for future spintronic applications not only in Mn<sub>x</sub>Ga<sub>1-x</sub> but also in the broader class of tetragonal Mn-Z-Ga (Z = transition metal) materials.</p>