Oleg Polozhentsev 

+7(863) 218-40-00 ext. 11018

Senior researcher

“Smart Materials" International research centre

E-mail:

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Degree: Candidate of Sciences

Personal page in Russian:

https://sfedu.ru/person/oepolozhentsev

Personal page in English:

https://sfedu.ru/en/person/oepolozhentsev

Research interests:

Fields of interest

• XAS spectroscopy (XANES and EXAFS). Theoretical and experimental investigation of local atomic geometry and electronic structure in various types of condensed matter including:
  • diluted magnetic semiconductors (DMSs);
  • local distortion in multiferroic materials;
  • Mechanism of antitumor drug action;
  • Metal nanoparticles, magnetic fluids.

•  effects and properties under the study:

- 3D local geometry and electronic structure of condensed materials without long range order of atoms

 - electronic structure (density of states, hybridization of electronic states and local dynamics of electrons) of condensed materials;

• Coherent X-ray Scattering and Coherent X-ray Diffractive Imaging (CXDI).

Theoretical Methods:

• Advanced theoretical analysis of X-ray Absorption Near Edge Structure (XANES) and DFT analysis;
• Full multiple scattering XANES/EELS simulations (FEFF);
• Non-muffin-tin Finite Difference method for XANES/EELS simulations (FDMNES).
• Advanced DFT quantum chemistry calculations including geometry optimization (ADF, BAND);
• Full-potential band structure calculations (Wien2k);
• Molecular Dynamics simulations (Scigress Explorer);
• Advanced method for theoretical analysis of X-ray Absorption Near Edge Structure (XANES) to extract 3D(three dimensional) local atomic nanostructure at high resolution on the basis of multi-dimensional interpolation (FitIt);