Browsing by Author "Svoukis, E."

Now showing items 1-13 of 13

    • Article  

      Ambiguous Role of Growth-Induced Defects on the Semiconductor-to-Metal Characteristics in Epitaxial VO2/TiO2 Thin Films 

      Mihailescu, C. N.; Symeou, E.; Svoukis, E.; Negrea, R. F.; Ghica, C.; Teodorescu, V.; Tanase, L. C.; Negrila, C.; Giapintzakis, John (2018)
      Controlling the semiconductor-to-metal transition temperature in epitaxial VO2 thin films remains an unresolved question both at the fundamental as well as the application level. Within the scope of this work, the effects ...
    • Article  

      A comprehensive study of natural gamma radioactivity levels and associated dose rates from surface soils in Cyprus 

      Tzortzis, M.; Svoukis, E.; Tsertos, Haralambos (2004)
      A survey was carried out to determine activity concentration levels and associated dose rates from the naturally occurring radionuclides 232Th, 238U and 40K, in the various geological formations of Cyprus, by means of ...
    • Article  

      Data storage applications based on LiCoO2 thin films grown on Al2O3 and Si substrates 

      Svoukis, E.; Mihailescu, C. N.; Mai, V. H.; Schneegans, O.; Breza, K.; Lioutas, C.; Giapintzakis, John (2015)
      In this study, LiCoO2 thin films were investigated for data storage applications based on scanning probe mediated approaches. LiCoO2, compared to other materials proposed for scanning probe mediated nanoscale patterning, ...
    • Article  

      Growth and transport properties of HT-Li xCoO 2 thin films deposited by pulsed laser deposition 

      Svoukis, E.; Athanasopoulos, G. I.; Moradpour, A.; Schneegans, O.; Revcolevschi, A.; Giapintzakis, John (2012)
      The successful in situ growth of single phase, c-axis oriented, layered structured Li xCoO 2 thin films on (0 0 0 1) Al 2O 3 substrates by pulsed laser deposition is reported. Thin films were grown in an oxygen pressure ...
    • Article  

      Indoor and outdoor in situ high-resolution gamma radiation measurements in urban areas of Cyprus 

      Svoukis, E.; Tsertos, Haralambos (2007)
      In situ, high-resolution, gamma-ray spectrometry of a total number of 70 outdoor and 20 indoor representative measurements were performed in preselected, common locations of the main urban areas of Cyprus. Specific activities ...
    • Article  

      Memristive and neuromorphic behavior in a Li x CoO 2 nanobattery 

      Mai, V. H.; Moradpour, A.; Senzier, P. A.; Pasquier, C.; Wang, K.; Rozenberg, M. J.; Giapintzakis, John; Mihailescu, C. N.; Orfanidou, C. M.; Svoukis, E.; Breza, A.; Lioutas, C. B.; Franger, S.; Revcolevschi, A.; Maroutian, T.; Lecoeur, P.; Aubert, P.; Agnus, G.; Salot, R.; Albouy, P. A.; Weil, R.; Alamarguy, D.; March, K.; Jomard, F.; Chrétien, P.; Schneegans, O. (2015)
      The phenomenon of resistive switching (RS), which was initially linked to non-volatile resistive memory applications, has recently also been associated with the concept of memristors, whose adjustable multilevel resistance ...
    • Article  

      Piecewise linear emulation of propagating fronts as a method for determining their speeds 

      Theodorakis, Stavros; Svoukis, E. (2003)
      The selected speed of pushed fronts was found through analytic calculations. The resulting analytic solution constitutes an excellent approximation to the exact propagating front, yielding also the correct value for the ...
    • Article  

      Pulsed laser deposition and thermal characterization of Ni-doped La5Ca9Cu24O41 thin films 

      Athanasopoulos, G. I.; Pervolaraki, M.; Svoukis, E.; Androulakis, J.; Saint-Martin, R.; Revcolevschi, A.; Giapintzakis, John (2011)
      Highly b-axis oriented polycrystalline Ni-doped La5Ca 9Cu24O41 thin films have been grown on (0 0 1) SrTiO3 substrates using the pulsed laser deposition technique. EDX measurements have revealed nearly stoichiometric ...
    • Article  

      Resistive switching phenomena in Li xCoO 2 thin films 

      Moradpour, A.; Schneegans, O.; Franger, S.; Revcolevschi, A.; Salot, R.; Auban-Senzier, P.; Pasquier, C.; Svoukis, E.; Giapintzakis, John; Dragos, O.; Ciomaga, V.-C.; Chrétien, P. (2011)
      A substantial resistive switching of Li xCoO 2 mixed-conductor thin films is observed for the first time. The occurrence of possible bipolar switching in these oxide thin films is by current-voltage curves, investigated ...
    • Article  

      Structural and thermal characterization of La5Ca 9Cu24O41 thin films grown by pulsed laser deposition on (1 1 0) SrTiO3 substrates 

      Svoukis, E.; Athanasopoulos, G. I.; Altantzis, T.; Lioutas, C.; Martin, R. S.; Revcolevschi, A.; Giapintzakis, John (2012)
      In the present study stoichiometric, b-axis oriented La5Ca 9Cu24O41 thin films were grown by pulsed laser deposition on (1 1 0) SrTiO3 substrates in the temperature range 600-750 °C. High resolution transmission electron ...
    • Conference Object  

      Thermal conductivity measurements of anisotropic bulk samples using the 3ω method 

      Athanasopoulos, G. I.; Svoukis, E.; Viskadourakis, Z.; Giapintzakis, John (Affiliation: Mechanical and Manufacturing Engineering, University of Cyprus, 75 Kallipoleos Avenue, Nicosia, 1678, CyprusAffiliation: Materials Science and Technology Department, University of Crete, P.O. Box 2208, Heraklion Crete 710 03, GreeceCorrespondence Address: Athanasopoulos, G. I.Mechanical and Manufacturing Engineering, University of Cyprus, 75 Kallipoleos Avenue, Nicosia, 1678, Cyprus, 2010)
      The 3ω method has been applied to measure the anisotropic thermal conductivity of single crystals of SiO2 (quartz) and La 14-yCayCu24O41 (y = 9 and 10). A two-dimensional heat conduction model along with properly oriented ...
    • Article  

      Thermal conductivity of Ni, Co, and Fe-doped La5Ca 9Cu24O41 thin films measured by the 3ω method 

      Athanasopoulos, G. I.; Svoukis, E.; Pervolaraki, M.; Saint-Martin, R.; Revcolevschi, A.; Giapintzakis, John (2010)
      The effect of Ni-, Co- and Fe-substitution for Cu on the thermal conductivity of La5Ca9Cu24O41 thin films is investigated. Highly b-axis oriented polycrystalline films were grown onto MgO (100) substrates using the pulsed ...
    • Article  

      Thermal conductivity of Ni, Co, and Fe-doped La5Ca9Cu24O41 thin films measured by the 3ω method 

      Athanasopoulos, G. I.; Svoukis, E.; Pervolaraki, M.; Saint-Martin, R.; Revcolevschi, A.; Giapintzakis, John (2010)