SPINSYNE

Dispozitive sinaptice si neuronale artificiale controlate prin efecte spin-orbitronice
PN-III-P4-ID-PCE-2020-1853 No. 182/04/01/2021

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Acasa Echipa Rezultate	Sumar al rezultatelor principale:
	In domeniul spintronicii, curentul electric poate fi utilizat pentru a controla proprietatile magnetice ale materialelor. In proiectul nostru, am explorat curentii de spin pentru a manipula structuri magnetice fara a utiliza câmpuri magnetice externe. Ne-am focalizat pe combinarea curentilor de spin si a unui alt efect cunoscut sub numele de interactiunea Dzyaloshinskii-Moriya (iDMI), care creeaza texturi magnetice unice, cum ar fi pereti de domeniu chirali si skyrmioni. Scopul nostru a fost sa utilizam aceste efecte pentru a construi sinapse si neuroni artificiali. Am proiectat structuri magnetice ultrasubtiri si am utilizat diverse tehnici experimentale pentru a intelege proprietatile acestora, precum experimente Hall, spectroscopie Brillouin si microscopie cu efect Kerr. Unul dintre rezultatele interesante a fost crearea de sinapse artificiale care replica functionarea celor biologice. Aceste sinapse au prezentat comportament asemanator memoriei imitând modul în care creierele învata si se adapteaza. De asemenea, am dezvoltat un dispozitiv asemanator unui neuron care imita functionalitatea de baza a unui neuron biologic. În esenta, munca noastra deschide noi posibilitati pentru crearea dispozitivelor de calcul avansate care functioneaza mai eficient si au complexitate similara cu creierele biologice. Este un pas catre un viitor în care tehnologia si biologia se integreaza armonios pentru inovatii revolutionare.

	Articole stiintifice:
	Thickness dependence of magnetic properties of Ir/FeV-based systems, D Ourdani, Y Roussigné, SM Chérif, MS Gabor, M Belmeguenai Phys. Rev. Materials , 7, 034408 (2023) https://doi.org/10.1103/PhysRevMaterials.7.034408

	Magnetic Damping and Dzyaloshinskii–Moriya Interactions in Pt/Co2FeAl/MgO Systems Grown on Si and MgO Substrates, N Challab, Y Roussigné, SM Chérif, MS Gabor, M Belmeguenai, Materials , 16, 1388 (2023) https://doi.org/10.3390/ma16041388

	Theoretical Investigation of Skyrmion Dynamics in Pt/Co/MgO Nanodots, D Ourdani, M Belmeguenai, MS Gabor, A Stashkevich, YRoussigné Materials , 15, 7474 (2022) (view pdf) https://doi.org/10.3390/ma15217474

	Correlation between interface perpendicular magnetic anisotropy and interfacial Dzyaloshinskii–Moriya interactions in Pt/Pd/Co/Au, D Ourdani, Y Roussigné, SM Chérif, MS Gabor, M Belmeguenai Journal of Physics D: Applied Physics , 55, 485004 (2022) (view pdf) https://doi.org/10.1088/1361-6463/ac94875

	Mechanism of Spin-Orbit Torques in Platinum Oxide Systems, J Nath, AV Trifu, MS Gabor, A Hallal, S Auffret, S Labau, A Mahjoub, E Chan, AK Chaurasiya, AK Mondal, H Yang, E Schmoranzerova, MA Nsibi, I Joumard, A Barman, B Pelissier, M Chshiev, G Gaudin, IM Miron Adv. Electron. Mater. , 2101335(2022) (view pdf) https://doi.org/10.1002/aelm.202101335

	HEffect of Chiral Damping on the dynamics of chiral domain walls and skyrmions, - CK Safeer, M-A Nsibi, J Nath, MS Gabor, H Yang, I Joumard, S Auffret, G Gaudin, I-M Miron (view pdf) Nature Communications , 13, 1192(2022)

	Dependence of the interfacial Dzyaloshinskii-Moriya interaction, perpendicular magnetic anisotropy, and damping in Co-based systems on the thickness of Pt and Ir layers, - D. Ourdani, Y. Roussigné, S. M. Chérif, M. S. Gabor, and M. Belmeguenai (view pdf) Phys. Rev. B 104, 104421 (2021)

	Annealing Temperature and Thickness Dependencies of Perpendicular Magnetic Anisotropy and Dzyaloshinskii-Moriya Interaction of Pt/Co/MgO thin films, - D. Ourdani; Y. Roussigné; S. M. Chérif; M. Gabor; M. Belmeguenai (view pdf) IEEE Trans. on Magn., (2021), 10.1109/TMAG.2021.3089002)

	Hf thickness dependence of perpendicular magnetic anisotropy, damping and interfacial Dzyaloshinskii-Moriya interaction in Pt/CoFe/Hf/HfO2, - D. Ourdani, Y. Roussigné, R. B. Mos, M. Nasui, S. M. Chérif, M. S. Gabor, M. Belmeguenai (view pdf) Phys. Rev. Materials 5, 084404 (2021)

	Conferinte:
	Asymmetric Diode-Like Behaviour Controlled by Geometry in Current Induced Spin-Orbit Torque Driven Domain Wall Devices, EM Stetco, T Petrisor, O Pop, IM Miron, MS Gabor, Joint European Magnetic Symposia 2023, Madrid, Spain - Best poster finalist award Bulk and interface spin-orbit torques in Pt/Co/MgO structures, MS Gabor, TPetrisor, MBelmeguenai, IM Miron, Joint European Magnetic Symposia 2023, Madrid, Spain - oral presentation Micromagnetic Simulations of Spin-Orbit Torque Driven Domain Wall Based Memristor Devices, EM Stetco, T Petrisor, O Pop, IM Miron, MS Gabor, Joint European Magnetic Symposia 2022, Warsaw, Poland - oral presentation

	Bulk and interface spin-orbit torques in Pt/Co/MgO structures, MS Gabor, Spins, waves and interactions workshop 2022, Greifswald, Germany - invited presentation

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