Liudmyla V. Omelchenko
Candidate of Sciences in Physics and Mathematics (Ph.D.),
Researcher
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine
47 Nauky Ave., Kharkiv, 61103, Ukraine
E-mail: omelchenko@ilt.kharkov.ua
Date and place of birth: February 21, 1988, Kharkiv Region, Zmiiv, Ukraine.
Education background
2006 - 2010: V.N. Karazin Kharkiv Natoinal University B Sc.
2010 - 2011: V.N. Karazin Kharkiv Natoinal University M.Sc. with Honours.
2013 - 2016: PhD student at B. Verkin Institute for Low Temperature Physics and Engineering National Academy of Sciences of Ukraine, Kharkiv, Ukraine.
2018: Ph.D. B. Verkin ILTPE of NASU (Physical and Mathematical Sciences), speciality – Solid State Physics. Thesis title “Excess conductivity in cuprate high-temperature superconductors REBa2Cu3O7-δ (RE = Y, Pr)”.
Career
2016: Engineer – B. Verkin ILTPE of NASU.
2016-2017: Junior Researcher – B. Verkin ILTPE of NASU.
2018: Researcher – B. Verkin ILTPE of NASU.
Area of expertise
1. Study of the transport properties of conducting and superconducting systems with a reduced density of charge carriers, such as high-temperature superconductors: cuprates of the YBa2Cu3O7-δ type, magnetic FeAs - pnictides and chalcogenides FeSe and FeTeSe.
2. Study of excess (fluctuation) conductivity and pseudogap in cuprate and iron-containing high-temperature superconductors.
3. Investigation of the features of the coexistence of superconductivity and magnetism in magnetic superconductors.
Personal grants and awards
• Scholarship of the National Academy of Sciences of Ukraine (2017-2019 рр.).
• Grant for visits of Young Ukrainian Scientists to Poland (2018 р.).
• Scholarship of Ukraine’s President (2020 – 2022 рр.).
• Grant of Research Works of Young Scientists of the National Academy of Sciences of Ukraine (2021-2022 рр.).
52 scientific papers (of which 15 are in scientific journals), h-index : 7 (Google Scholar), or 7 (Scopus).
Key publications
1. Hydrostatic-pressure effect on the pseudogap in slightly doped YBa2Cu3O7-δ single crystals / A.L. Solovjov, L.V. Omelchenko, R.V. Vovk, O.V. Dobrovolskiy, Z.F. Nasyrov, S.N. Kamchatnaya, D.M. Sergeyev // Physica B. – 2016. – V. 493. – P. 58 – 67. Q2
DOI: http://dx.doi.org/10.1016/j.physb.2016.04.015
2. Peculiarities in the pseudogap behavior in optimally doped YBa2Cu3O7-δ single crystals under pressure up to 1 GPa / A.L. Solovjov, L.V. Omelchenko, R.V. Vovk, O.V. Dobrovolskiy, S.N. Kamchatnaya, D.M. Sergeyev // Current Applied Physics. – 2016. – V.16, № 9. – P. 931 – 938. Q2
DOI: http://dx.doi.org/10.1016/j.cap.2016.05.014
3. Fluctuation conductivity and possible pseudogap state in FeAs based superconductor EuFeAsO0.85F0.15 / A.L. Solovjov, L.V. Omelchenko, A.V. Terekhov, K. Rogacki, R.V. Vovk, E.P. Khlybov and A. Chroneos // Materials Research Express. – 2016. – V.3, № 7. - P. 076001 (1-13). Q2
DOI: doi:10.1088/2053-1591/3/7/076001
4. Specific temperature dependence of pseudogap in YBa2Cu3O7-δ nanolayers / A.L. Solovjov, L.V. Omelchenko, V.B. Stepanov, R.V. Vovk, H.- U. Habermeier, P. Przyslupski and K. Rogacki // Phys.Rev.B. – 2016. – V. 94, №22. – P. 224505 (1-11). Q1
DOI: doi:10.1103/PhysRevB.94.224505
5. Effect of Hafnium Impurities on the Magnetoresistance of YBa2Cu3O7-δ / S.V. Savich, A.V. Samoylov, S.N. Kamchatnaya, I.L. Goulatis, R.V. Vovk, A. Chroneos, A.L. Solovjov, L.V. Omelchenko // J Low Temp Phys. – 2017. – V. 186, № 3-4. – P. 285 – 293. Q2
DOI: doi:10.1007/s10909-016-1703-9
6. Pseudogap and fluctuation conductivity in Y1-xPrxBa2Cu3O7-δ single crystals with different concentrations of praseodymium / A.L. Solovjov, L.V. Omelchenko, R.V. Vovk, S.N. Kamchatnaya // Low Temperature Physics. – 2017. – V.43, № 7. – P. 841– 847.
DOI: https://doi.org/10.1063/1.4995634
7. Suppression of the order–disorder transition in Ti-doped YBaCuO compounds / S.V Savich, A.V Samoylov, S.N Kamchatnaya, O.V Dobrovolskiy, R.V Vovk, A.L Solovjov, L.V Omelchenko // Materials Science: Materials in Electronics. – 2017. - V. 28, № 8. – P. 11415-11419. Q2
DOI: doi:10.1007/s10854-017-6936-0
8. Effect off annealing on a pseudogap in untwinned YBa2Cu3O7-δ single crystals / A.L. Soloviov, E.V. Petrenko, L.V. Omelchenko, R.V. Vovk, I.L. Goulatis, A. Chroneos // Scientific Reports. - 2019. – V.9, № 9274. – P.1-13. Q1
DOI: https://doi.org/10.1038/s41598-019-45286-w
9. Features of Excess Conductivity Behavior in a Magnetic Superconductor Dy0.6Y0.4Rh3.85Ru0.15B4 / A.L. Solovjov, A.V. Terekhov, E.V. Petrenko, L.V. Omelchenko, Z Cuiping // Low Temperature Physics. – 2019. – V.45, № 11. – P. 1193 – 1201.
DOI: https://doi.org/10.1063/10.0000125
10. Peculiarities of pseudogap in Y0.95Pr0.05Ba2Cu3O7− δ single crystals under pressure up to 1.7 GPa / A.L. Solovjov, L.V. Omelchenko, E.V. Petrenko, R.V. Vovk, V.V. Khotkevych, A. Chroneos // Scientific Reports. - 2019. – V.9, № 1. – P.1-16. Q1
DOI: https://doi.org/10.1038/s41598-019-55959-1
11. Features of excess conductivity and a possible pseudogap in FeSe superconductors / A.L. Solovjov, E.V. Petrenko, L.V. Omelchenko, E. Nazarova, K. Buchkov, K. Rogacki // Low Temperature Physics. – 2020. – V. 46, №. 5. – P. 538 – 549.
DOI: https://doi.org/10.1063/10.0001059
13. Analysis of fluctuation conductivity in Y1−хCdxBa2Cu3O7−δ (x = 0−0.4) / V.M. Aliyev, R.I. Selim-zade, J.A. Ragimov, L.V. Omelchenko, E.V. Petrenko // Low Temperature Physics. – 2020. – V.46, № 9. – P. 901– 909.
DOI: https://doi.org/10.1063/10.0001712
14. Fluctuating Cooper pairs in FeSe at temperatures exceeding double Tc / A.L. Solovjov, E.V. Petrenko, L.V. Omelchenko, Elena Nazarova, Krastyo Buchkov, Krzysztof Rogacki // Superconductor Science and Technology. – 2021. – V. 34, №. 1. – P. 015013. Q1
DOI: doi:10.1088/1361-6668/abc2ac
15. Study of fluctuation conductivity in YBa2Cu3O7-δ films in strong magnetic fields / E.V. Petrenko, L.V. Omelchenko, Yu.A. Kolesnichenko, N.V. Shytov, K. Rogacki, D.M. Sergeyev, A.L. Solovjov // Low Temperature Physics. – 2021. – V.47, № 12. – P. 1148 – 1156.
DOI: https://doi.org/10.1063/10.0007080
Contacts
47 Nauky Ave., Kharkiv, 61103, Ukraine
e-mail: terekhov@ilt.kharkov.ua
tel.: +380(99)764-2075
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