RESEARCH INTERESTS

Flexomagnetism, topological matter, magnetic systems and sensors

ABOUT/BIOGRAPHY

Physicist with postgraduate studies in solid state physics who received his PhD in 1999 from the School of Applied Mathematical and Physical Sciences, of NTUA, GR. 

Research interests are experimental solid state physics and materials science and in particular: 

a) Nanostructured magnetic materials, magnetostrictive materials (thin films Terfenol – D based), hard magnetic thin films as permanent magnets, (NdFeB, SmCo, FePt), thin films of magnetic materials for sensors applications, exchange bias with the [Pt/Co]n/[FeMn or NiO]/[CoPt]n and NiFe/IrMn systems.

b) Screen printed thick magnetic films, design and patterning of MEMS, type devices, such as micromotors, microgenerators and microswitches. 

c) Amorphous magnetic systems and sensors.      

d) Magnetron sputtered coatings for space applications.

e) L10 – FePt magnetic thin films for ultrahigh recording media.

f) Galvanomagnetic phenomena in Semimetals and Topological Insulators.

g) Single crystals growth

h) Flexomagnetism, Topological Matter and Magnetism, 

i) Topological Matter and Magnetism

Participation as a member of a research team or as a coordinator in 17 research and development projects, funded by Hellenic Resources, the European Union and the USA.

Participation in more than 40 scientific conferences and research and development project meetings. 

Fulbright Scholar for the Academic Year 2019 – 2020. Iowa State University & Ames Laboratory.

DAAD Scholar for the Academic Year 2020 – 2021. HZDR, Dresden, Germany

PUBLICATIONS

Tzanis, A., Zeibekis, M., Pilidi, A., Koutsokostas, N., Kollia, C. and Speliotis, T., Villari magnetomechanical coupling at hcp-Cobalt thin films on flexible substrates Materials Science and Engineering B: Solid-State Materials for Advanced Technology, Volume 264, Article Number: 114945, 2021 [doi]

Sanida, A., Stavropoulos, S.G., Speliotis, T. and Psarras, G.C., Evaluating the multifunctional performance of polymer matrix nanodielectrics incorporating magnetic nanoparticles: A comparative study Polymer, Volume 236, Article Number: 124311, 2021 [doi]

Choi, B.C., Jordan, K., Rudge, J. and Speliotis, T., Coherent Magnetization Dynamics in Ni80Fe20Thin Films Incorporated in Fe/Au Spintronic Terahertz Emitters IEEE Transactions on Magnetics, Volume 57, Article Number: 9139443, 2021 [doi]

Sanida, A., Stavropoulos, S.G., Speliotis, T. and Psarras, G.C., Development and characterization of multifunctional yttrium iron garnet/epoxy nanodielectrics Journal of Thermal Analysis and Calorimetry, Volume 142, Pages: 1701-1708, 2020 [doi]

Sanida, A., Stavropoulos, S.G., Speliotis, T. and Psarras, G.C., Probing the magnetoelectric response and energy efficiency in Fe3O4/epoxy nanocomposites Polymer Testing, Volume 88, Article Number: 106560, 2020 [doi]

Pilidi, A., Speliotis, T. and Litsardakis, G., Structural and magnetotransport characterization of magnetron sputtered co-doped Bi2Te3 thin films Journal of Magnetism and Magnetic Materials, Volume 511, Article Number: 166971, 2020 [doi]

Kyriakis, A, Glezos, N, Velessiotis, D, Pilatos, G, Speliotis, T and Stefanou, A, A UV photodetector based on ordered free standing MWCNT Journal of Instrumentation, IOP Publishing, Volume 15, Pages: C01015, 2020 [doi]

Ioannou-Sougleridis, V., Alafakis, S., Vouroutzis, N.Z., Mergia, K., Speliotis, A. and Skarlatos, D., Degradation of Pt-Al2O3-Ge metal oxide semiconductor structures due to Pt-Al2O3 induced reactions ECS Journal of Solid State Science and Technology, Volume 9, Article Number: 024003, 2020 [doi]

Chen, S., Horn Von Hoegen, M., Thiel, P.A., Kaminski, A., Schrunk, B., Speliotis, T., Conrad, E.H. and Tringides, M.C., High Layer Uniformity of Two-Dimensional Materials Demonstrated Surprisingly from Broad Features in Surface Electron Diffraction Journal of Physical Chemistry Letters, Volume 11, Pages: 8937-8943, 2020 [doi]

Kefallinou, D., Ellinas, K., Speliotis, T., Stamatakis, K., Gogolides, E. and Tserepi, A., Optimization of antibacterial properties of "hybrid" metal-sputtered superhydrophobic surfaces Coatings, Volume 10, Article Number: 25, 2020 [doi]

Pilidi, A., Tzanis, A., Helm, T., Arfanis, M., Falaras, P. and Speliotis, T., Nanometer-thick bismuth nanocrystal films for sensoric applications ACS Applied Nano Materials, Volume 3, Pages: 9669-9678, 2020 [doi]

Chaitoglou, S., Giannakopoulou, T., Speliotis, T., Vavouliotis, A., Trapalis, C. and Dimoulas, A., Mo2C/graphene heterostructures: Low temperature chemical vapor deposition on liquid bimetallic Sn-Cu and hydrogen evolution reaction electrocatalytic properties Nanotechnology, Volume 30, Article Number: 125401, 2019 [doi]

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