Scientific report

Activity Report 2022 - Stage

A scientific study on ”Modelling and layout design of spintronic structures on graphene” has been performed. This study focused on the following general aspects:
• Was made an intensive study on the state of the art on graphene-based spintronic structures and microfabrication processes;
• Advanced modelling of the transport phenomena in graphene and magnetic behaviour of the spintronic systems has been performed; the behaviour of the magnetic contacts and the magnetoresistance effect in graphene based spintronic system was intensively modelled and technical solutions were provided.
• A layout design for the graphene-based spintronic test chip has been provided. The idea of a high flexibility for applications development was taken into account in this design. 

Activity Report 2023 - Stage

The second stage entitled “Microfabrication experiments for characterizing spintronic structures on graphene” was focused mainly on the following aspects:
• Modelling, layout design and chip microfabrication experiments.
• Complex structural, electrical and magnetic characterizations of the graphene structures with magnetic layers.
• Studies were performed on structures with nanocrystalline graphite, vertical graphene (graphene nanowalls) and monolayer graphene.
• The electrical behaviour of Metal-Graphene and Metal-Oxide-Graphene contacts was emphasized.
• Micromagnetic simulations of the ferromagnetic contacts were performed which demonstrated a favourable behaviour for spin detection.  

 Published articles - ISI indexed articles

[1]. Acosta Gentoiu, M., García Gutiérrez, R., Alvarado Pulido, J. J., Montaño Peraza, J., Volmer, M., Vizireanu, S., ... & Rodriguez-Carvajal, R. A. (2023). Correlating Disorder Microstructure and Magnetotransport of Carbon Nanowalls. Applied Sciences, 13(4), 2476.  https://doi.org/10.3390/app13042476
[2]. Helerea, E., Calin, M. D., & Musuroi, C. (2023). Water energy nexus and energy transition—A review. Energies, 16(4), 1879. https://doi.org/10.3390/en16041879
[3]. Marculescu, C.; Preda, P.; Burinaru, T.; Chiriac, E.; Tincu, B.; Matei, A.; Brincoveanu, O.; Pachiu, C.; Avram, M. „Customizable Fabrication Process for Flexible Carbon-Based Electrochemical Biosensors”, Chemosensors 2023, 11, 204. https://doi.org/10.3390/chemosensors11040204
[4]. Preda, P., Enciu, A. M., Tanase, C., Dudau, M., Albulescu, L., Maxim, M. E., ... & Avram, M. (2023). Assessing Polysaccharides/Aloe Vera–Based Hydrogels for Tumor Spheroid Formation. Gels9(1), 51. https://doi.org/10.3390/gels9010051
[5]. Simionescu, O. G., Avram, A., Adiaconiţă, B., Preda, P., Pârvulescu, C., Năstase, F., ... & Avram, M. (2023). Field-Effect Transistors Based on Single-Layer Graphene and Graphene-Derived Materials. Micromachines, 14(6), 1096. https://doi.org/10.3390/mi14061096

Communication at international scientific conference

[1].  M. Volmer, M. David, M. Avram, M. Florescu, A. Bezergheanu, C. Mușuroi, M. Oproiu, Using Magnetic Nanofibers to Control the Magnetic Anisotropy of a Thin Permalloy Film, 13th Joint European Magnetic Symposia (JEMS 2023), Madrid, Spania, 27 August – 1 Septembrie 2023, Poster, Book of Abstracts, Pag. 337, https://www.jems2023.es/images/site/JEMS2023-BOOK_OF_ABSTRACTS.pdf