The Faculty of Physics

Vovk Nikolai Ruslanovich

    post-graduate student Department of Theoretical Physics I.M. Lifshyts;

    Phone: +38 (095) 911-49–84
    Address: Svobody sq. 4, Faculty of Physics KNU, Kharkov, Ukraine, 61022.
    E-mail: nikolayvovk94@gmail.com

  Born in 1994 in Kharkiv.
Education and Degrees
2012-2016 Bachelor in Theoretical Physics (Diploma with honors)
School of Physics , V. N. Karazin Kharkiv National University
Bachelor's diploma: "Conductivity of inhomogeneous tunnel magnetic barrier"
2016-2018 Master in Theoretical Physics (Diploma with honors)
School of Physics , V. N. Karazin Kharkiv National University
Master's diploma: “Complex theory of localized spin systems”
2016-2018 Master in Physics (Academic Internship in Theoretical Physics)
Faculty of Sciences, P. J. Šafárik University in Košice

Master's diploma: “Complex theory of localized spin systems”.

2018-present PhD in Physics (Academician I.M.Lifshits Department of Theoretical Physics)
School of Physics , V. N. Karazin Kharkiv National University

Scientific internships, collaboration and international conferences

2016-2017: 1 year “Erasmus+” studentship holder at the P. J. Šafárik University in Košice, Slovakia
2017-2018: 1 year “SAIA” National Scholarship Programme of the Slovak Republic holder at the P. J. Šafárik University in Košice, Slovakia
February 2018: 1st eduQUTE School on Quantum Technologies, Bratislava, Slovakia
June-July 2018: One-month internship in Exeter University, Exeter, United Kingdom, in the group of Prof V. Kruglak in a framework of the Marie Sklodowska-Curie Research and Innovation Staff Exchange (RISE) project "MagIC - Magnonics, Interactions and Complexity: multifunctional aspects of spin-wave dynamics"
17- 21 September 2018: 3rd International Advanced School on Magnonics.
October-November 2018: One-month internship in University del Pais Vasco, San Sebastian, Spain in the group of Prof K. Guslienko.
November-December 2018: One-month internship in Adam Mickiewicz University, Poznan, Poland in the group of Prof M. Krawczyk.
April-May 2019: One-month internship in Adam Mickiewicz University, Poznan, Poland in the group of Prof M. Krawczyk.
October 2019 – Nowadays: Working contract at the Institute of Physics for Advanced Materials, Nanotechnology and Photonics (IFIMUP) Porto, Portugal.
March 2020: NanoMag School in Wien, Austria.
Research interests: HTSC superconductivity, magnetism, magnonics, numerical modelling of magnetic nanostructures for spintronic applications.
Research interests: HTSC superconductivity, magnetism, magnonics, numerical modelling of magnetic nanostructures for spintronic applications.

Main publications.

  1. Suppression of vortex lattice melting in YBCO via irradiation with fast electrons Beletskiy, V.I., Khadzhai, G.Y., Vovk, R.V., Vovk, N.R., Samoylov, A.V., Goulatis, I.L.,    Dobrovolskiy, O.V. Journal of Materials Science: Materials in Electronics,  2019, 30(7), pp. 6688-6692
  2. Effect of electron irradiation on the transverse conductivity of the YBa2Cu3O7-δ single crystal  Khadzhai, G.Ya., Vovk, N.R., Vovk, R.V, Low Temp. Phys. 45, 135 (2019); https://doi.org/10.1063/1.5082326
  3. Effect of high pressure on various diffusion mechanisms in oxygen-deficient ReBa2Cu3O 7-X (Re = Y, Ho) single crystals   G. Ya. Khadzhai, N. R. Vovk, R. V. Vovk, I. L. Goulatis and O. V. Dobrovolskiy, Modern Physics Letters B (2019); https://doi.org/10.1142/S0217984919500398