 
 
						 
  
				 
				  
 
				
			
 Office address:
 B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 47 Nauky Ave., 61103 Kharkiv, Ukraine
 Telephone Office: 
+38 057 3410831
 Date and place of birth:
 4 August 1957 , Kharkov, USSR
 Marital Status:
 married
 Citizenship:
 Ukraine
 Research Profile:
 Low temperature (ap to 0.5K) mechanical properties and physical mechanisms of strength and plasticity of metals and alloys including nanostructured and nanocrystalline materials, bulk amorphous and high-entropy alloys.
 Scientific activities:
 146 publications in refereed International Journals and in Proceedings of International Conferences. 
 Education:
 1988 - Candidate in Physics and Mathematics (analogous to PhD), B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkiv, Ukraine.
 1980 - Graduated (with honors) from Kharkiv Polytechnic Institute, Department of Mechanical Engineering, Kharkov, USSR.
 Employment:
 2007 – present - Senior Researcher at the Department of Real Crystal Physics (supervisor  Dr. P.P. Pal-Val), B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkiv, Ukraine.
 1992 – 2006 - Researcher at the Department of Real Crystal Physics (supervisor Prof. V.D. Natsik), B. Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, Kharkiv, Ukraine.
 1986 – 1991 - Junior Researcher at the Department of Real Crystal Physics (supervisor Prof. V.D. Natsik), Institute for Low Temperature Physics and Engineering, Academy of Sciences of Ukrainian SSR, Kharkov, USSR.
 1984 – 1986 – Engineer at the Department of Real Crystal Physics (supervisor Prof. V.D. Natsik), Institute for Low Temperature Physics and Engineering, Academy of Sciences of Ukrainian SSR, Kharkov, USSR
 1982 – 1984 - Graduate Student at the Department of Real Crystal Physics (supervisor  Prof. V.I. Startsev), Institute for Low Temperature Physics and Engineering, Academy of Sciences of Ukrainian SSR, Kharkov, USSR.
 Grants:
 2019-2020 - ukrainian-austrian r&d projects “Effect of Phase Transformations and Twinning on the low temperature mechanical properties of  nanostructured  Fe-Mn-Co-Cr High Entropy Alloys”
 1996 - Grant No. U2P200 of the International Science Foundation
 1994 - Grant No. U2P000 of the International Science Foundation
 Grant No. UG168 of the American Physical Society
Languages:
 Ukrainian (fluently), Russian (native), English (basic).
 List of the most important publications in the last five years:
 Unraveling the discontinuous plastic flow of a Co-Cr-Fe-Ni-Mo multiprincipal-element alloy at deep cryogenic temperatures / J. Moon, E. Tabachnikova , S. Shumilin, T. Hryhorova, Yu. Estrin , J. Brechtl ,P.K. Liaw , W. Wang, K.A. Dahmen, and H. S. Kim // Physical Review Materials. – 2021. –  V. 5.– 083601(1) – 083601(7).
 Citation - 31.
 Journal impact factor -  3.4.  
 Deformation behavior of a Co-Cr-Fe-Ni-Mo medium-entropy alloy at extremely low Temperatures / J. Moon, E. Tabachnikova , S. Shumilin, T. Hryhorova, Yu. Estrin , J. Brechtl ,P.K. Liaw , W. Wang, K.A. Dahmen, , A. Zargaran, J. W. Bae, H. S. Do,B.-J. Lee, and H.- S. Kim // Materials Today. – 2021.  – V.50. – P. 55-68.
								
 Citation - 94.
								
 Journal impact factor -  22.  
  	
 Mechanical properties of a two-phase high-entropy Fe50Mn30Co10Cr10 alloy down to ultralow temperatures / E.D. Tabachnikova, S. E. Shumilin, T. Hryhorova, I. V. Kolodiy, Yu. O. Shapovalov, Yu. O. Semerenko, S. N. Smirnov, I. V. Kashuba, M. A. Tikhonovsky, M. J. Zehetbauer, and E. Schafler // Low Temperature Physics. – 2022. – Vol. 48, No. 10. – P. 845-852.
								
 Citation - 7. 
								
 Journal impact factor -  0.8. 
 Low temperature plasticity of microcrystalline Al–Li alloy / T. Hryhorova, N. Isaev S. Shumilin, P. Zabrodin, D. Drozdenko, K. Fekete, O. Davydenko // Materials Science & Engineering A. –  2023. –  V. 864. –  144586(1) . –144586(9).
								
 Citation - 6. 
								
 Journal impact factor -  6.4. 
 Cryo-Severe Plastic Deformation, Microstructures and Properties of Metallic Nanomaterials at Low Temperatures / Tabachnikova E., Hryhorova T., Shumilin S., Semerenko Yu., Huang Yi, Langdon T.G. // Materials Transactions. –  2023. – V. 64(8) . – P. 1806-1819.
								
 Citation - 13.
								
 Journal impact factor -  1.265.