Dr Nikolaos Panopoulos graduated the Physics Department of the National and Kapodistrian University of Athens (BSc 2002) and obtained a Master’s degree (Msc 2004) in Physics and his PhD degree in the field of nuclear magnetism in 2012 from the School of Applied Mathematical and Physical Sciences of the National Technical University of Athens (NTUA). The title of Phd thesis is “Nuclear Magnetic Resonance (NMR) in manganese perovskites of colossal magnetoresistance”. Since 2012 he is working as a research associate at the laboratory of the solid state NMR group (research area of “Magnetism and Superconductivity: Advanced Materials and Applications”) in the Institute of Nanoscience and Nanotechnology (INN), NCSR “Demokritos [https://inn.demokritos.gr/project/nuclear-magnetic-resonance-spectroscopy-about-the-group/] and has cooperated with several scientific research groups from Greece and abroad, such as those found in the Department of Materials and Environmental Chemistry at Stocholm University (Stocholm, Sweden) [https://www.mmk.su.se/research/facilities/solid-state-nmr], the Department of Physics at Khalifa University (Abu Dhabi, United Arab Emirates) [https://www.ku.ac.ae/academics/college-of-arts-and-sciences/department/department-of-physics#about] and the Research Center of Materials Analysis at Korea Basic Science Institute (Daejeon, Republic of Korea) [https://www.kbsi.re.kr/eng_res_0101], building expertise in the experimental investigation (and data analysis) of the electromagnetic properties of materials using solid state pulsed NMR spectroscopy and other techniques.His research interests focus in the implementation of advanced NMR methods in the study of Condensed Matter systems with complex properties. Specifically, he has worked on implementing high and low temperature NMR methods in the study of the spin dynamics of molecular nanomagnets, and novel strongly correlated electron systems (transition metal oxides with magnetic and superconducting properties). In this framework, he has significant contribution in the development of the high temperature NMR facility of NCSR “Demokritos”, including fabrication of spectrometers operating in the frequency range 5 MHz to 800 MHz and NMR probes operating in the temperature range 2K-1000K. His recent studies focus in the fields of catalysis (such as MoS2, Ni2P, nanozeolites, etc.) as well as topological insulators (ultrathin Bi2Se3 and Bi2Te3 nanoplatelets). Further experimental work extends in NMR studies of magnetic nanoparticles such as maghemite, vanadates, germananes, which can be regarded as potential candidates for catalysis. NMR experimental results are further analyzed by applying DFT calculations. He has worked in the implementation of regularization techniques for inverting NMR relaxation and diffusion data. Specifically, he has worked in 1H NMR relaxation studies of liquids impregnated in various porous structures, such as water reactivity in hardening cement pastes, water and oil saturated rocks, as well as water and ionic liquids in carbon nanotubes and silica porous systems (MCM-41 and SBA-15). In this context, valuable information has been gained by implementing 2D NMR relaxation and diffusion methods (T1-T2, D-T2), and using two-dimensional Tikhonov regularization algorithms. In addition, he has performed Molecular Dynamics (MD) Simulations on pure ionic liquids, utilizing the GROMACS software package in collaboration with the research group of Molecular Thermodynamics and Modeling of Materials in INN, NCSR “Demokritos” [https://inn.demokritos.gr/project/molecular-thermodynamics-and-modeling-of-materials-about-the-group/].


Papawassiliou, W., Carvalho, J.P., Panopoulos, N., Al Wahedi, Y., Wadi, V.K.S., Lu, X., Polychronopoulou, K., Lee, J.B., Lee, S., Kim, C.Y., Kim, H.J., Katsiotis, M., Tzitzios, V., Karagianni, M., Fardis, M., Papavassiliou, G. and Pell, A.J., Crystal and electronic facet analysis of ultrafine Ni2P particles by solid-state NMR nanocrystallography Nature Communications, Volume 12, Article Number: 4334, 2021 [doi]

Papawassiliou, W., Jaworski, A., Pell, A.J., Jang, J.H., Kim, Y., Lee, S.-C., Kim, H.J., Alwahedi, Y., Alhassan, S., Subrati, A., Fardis, M., Karagianni, M., Panopoulos, N., Dolinšek, J. and Papavassiliou, G., Resolving Dirac electrons with broadband high-resolution NMR Nature Communications, Volume 11, Article Number: 1285, 2020 [doi]

Hassan, J., Diamantopoulos, G., Gkoura, L., Karagianni, M., Alhassan, S., Kumar, S.V., Katsiotis, M.S., Karagiannis, T., Fardis, M., Panopoulos, N., Kim, H.J., Beazi-Katsioti, M. and Papavassiliou, G., Ultrafast Stratified Diffusion of Water Inside Carbon Nanotubes; Direct Experimental Evidence with 2D D- T2 NMR Spectroscopy Journal of Physical Chemistry C, Volume 122, Pages: 10600-10606, 2018 [doi]

Panopoulos, N., Pissas, M., Kim, H.J., Kim, J.-G., Yoo, S.J., Hassan, J., Alwahedi, Y., Alhassan, S., Fardis, M., Boukos, N. and Papavassiliou, G., Polaron freezing and the quantum liquid-crystal phase in the ferromagnetic metallic La0.67Ca0.33MnO3 npj Quantum Materials, Volume 3, Article Number: 93, 2018 [doi]

Kim, H.J., Katsiotis, M.S., Alhassan, S., Zafiropoulou, I., Pissas, M., Sanakis, Y., Mitrikas, G., Panopoulos, N., Boukos, N., Tzitzios, V., Fardis, M., Kim, J.-G., Lee, S.-G., Kim, Y.-M., Yoo, S.J., Lee, J.-H., Kouloumpis, A., Gournis, D., Karakassides, M. and Papavassiliou, G., Unexpected orbital magnetism in Bi-rich Bi2Se3 nanoplatelets NPG Asia Materials, Volume 8, Article Number: e271, 2016 [doi]

Meidanis, H., Baciu, D.E., Papavassiliou, G., Fardis, M. and Panopoulos, N., Electrospun ceramic and ceramic-polymer composite nanofibers for bone tissue engineering applications Journal of Optoelectronics and Advanced Materials, Volume 16, Pages: 414-421, 2014 [doi]

Koumoulis, D., Panopoulos, N., Reyes, A., Fardis, M., Pissas, M., Douvalis, A., Bakas, T., Argyriou, D.N. and Papavassiliou, G., Direct NMR evidence of phase solitons in the spin ground state of overdoped manganites Physical Review Letters, Volume 104, Article Number: 077204, 2010 [doi]

Panopoulos, N., Koumoulis, D., Diamantopoulos, G., Belesi, M., Fardis, M., Pissas, M. and Papavassiliou, G., Spin order and lattice frustration in optimally doped manganites: A high-temperature NMR study Physical Review B - Condensed Matter and Materials Physics, Volume 82, Article Number: 235102, 2010 [doi]

Raptopoulou, Catherine P., Boudalis, Athanassios K., Lazarou, Katerina N., Psycharis, Vassilis, Panopoulos, Nikos, Fardis, Michael, Diamantopoulos, George, Tuchagues, Jean-Pierre, Mari, Alain and Papavassiliou, George, Salicylaldoxime in manganese(III) carboxylate chemistry: Synthesis, structural characterization and physical studies of hexanuclear and polymeric complexes POLYHEDRON, Volume 27, Pages: 3575-3586, 2008 [doi]

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