Alexander S. Samardak

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FEFU

English level: Fluent 

Program: Condensed Matter Physics (Physical and Mathematical Sciences)

Research projects: 

  • State task "Multifunctional magnetic nanostructures for spintronics and biomedicine: synthesis, structural, magnetic, magneto-optical and transport properties" 2020-2022, Supervisor

  • RSF project "Synthesis and complex research of magnetically hard materials based on Nd-(Fe, Co) nanoparticles with improved functional properties" 2019-2022, PI
  • RFBR project "Spin-dependent phenomena and non-collinear magnetic textures in synthetic antiferromagnets with broken inverse symmetry", 2019-2021, PI

Research areas:

  • Study of chiral spin textures in ultrathin magnetic films

  • Investigation of the interfacial Dzyaloshinskii-Moriya interaction in layered films and nanostructures
  • Research of magnetic nanostructures prepared by electrodeposition

  • Spintronics and Spin-Orbitronics

Advisor's research interests:

  • Magnetic thin films and nanostructures for next generation of memory, logic and neuromorphic devices.

  • Electrodeposited magnetic nanostructures namely nanowires, nanostripes, nanosprings, nanoparticles for energy and biomedical applications.

  • Skyrmions, skyrmioniums, merons, bimerons, vortices as quasi-particles for nonvolatile memory and efficient computing.

  • Spin Hall effect and spin-orbit torque in ultrathin magnetic films and structures

Research highlights:

We offer state-of-the-art research infrastructure, advanced scientific topics, professional supervision and friendly environment for the productive work and preparation of a dissertation. We have intensive collaboration with leading research teams from USA, China, Japan, South Korea, Germany, UK, Iran, Norway, and France. In case of the participation of a Ph.D. student in any our grant, we pay a salary for the research work conducted.

Supervisor’s specific requirements:

  • Background in Physics is required.
  • At least one publication in a physical journal indexed in Scopus/Web of Science and/or two conference abstracts

  • Good knowledge of Russian and/or English

Publications:

90 papers, H-index=11 (https://publons.com/researcher/2586806/alexander-s-samardak/)

A.S. Samardak, A.V. Davydenko, A.G. Kolesnikov, A.Yu. Samardak, A.G. Kozlov, B. Pal, A.V. Ognev, A.V. Sadovnikov, S.A. Nikitov, A.V. Gerasimenko, I.H. Cha, Y.J. Kim, G.W. Kim, O.A. Tretiakov, Y.K. Kim, Enhancement of perpendicular magnetic anisotropy and Dzyaloshinskii–Moriya interaction in thin ferromagnetic films by atomic-scale modulation of interfaces // NPG Asia Materials 12, 51 (2020). 
E. Yoo, A.Yu. Samardak, Y.S. Jeon, A.S. Samardak, A.V.  Ognev, S.V. Komogortsev, Y.K. Kim, Composition-driven crystal structure transformation and magnetic properties of electrodeposited Co–W alloy nanowires // Journal of Alloys and Compounds (2020), https://doi.org/10.1016/j.jallcom.2020.155902, IF=4.175, Q1

W. L. Yang, C. H. Wan, Z. R. Yan, X. Zhang, Maksim E. Stebliy, X. Wang, C. Fang, C. Y. Guo, Y. W. Xing, T. Y. Ma, Alexey V. Ognev, Alexander S. Samardak, Mean-Jue Tung, G. Q. Yu, and X. F. Han,  Chirality-reversible multistate switching via two orthogonal spin-orbit torques in a perpendicularly magnetized system // Physical Review Applied 13 (2020) 024052.
K.S. Ermakov, A.Yu. Samardak, A.G. Kolesnikov, M.E. Stebliy, A.V. Ognev, L.A. Chebotkevich, A.S. Samardak, Crystal structure and magnetic properties of wafer-size Co nanostrip arrays self-organized on a step-bunched surface of Si(111)-5.55 × 5.55-Cu/(Cu, Cu2Si, W-O) buffers // Materials Characterization 160 (2020) 110077.

F. Nasirpouri, S. Barzegar, A.Yu. Samardak, A.V. Ognev, A.A. Zubkov, A. Stancu, A.S. Samardak, Mesophase micelle-assisted electrodeposition and magnetisation behavior of meso-porous nickel films for efficient electrochemical energy and magnetic device applications // Applied Surface Science 471 (2019) 776–785.

Results of intellectual activity:

1. K.S. Ermakov, L.A. Chebotkevich, A.V. Ognev, A.S. Samardak, Fabrication method of copper epitaxial nanostructures on the surface of semiconductor substrates, Patent for invention, RU 2522844 C1, published on July 20, 2014, http://www.findpatent.ru/patent/252/2522844.html

2. Stebliy ME, Ognev A.V., Samardak A.S., Magnetic Element and Method for Controlling of Magnetic Vortex Parameters in Ferromagnetic Disks, Patent for invention, RU 2528124 C2, published 09/10/2014, http: // www .findpatent.ru/patent/252/2528124.html

3. Samardak A.S., Anisimova M.V., Ognev A.V., Method for the Formation of Polymer Patterns of Nanostructures of Different Geometry, Patent for invention RU 2574527 C1 dated January 12, 2016, http://www.findpatent.ru/patent /257/2574527.html.

4. Samardak A.S., Ermakov K.S., Ognev A.V., Chebotkevich L.A., Method of forming ordered structures on the surface of semiconductor substrates, Patent for invention RU 2593633 C1 dated 10.08.2016, http: // www.findpatent.ru/patent/259/2593633.html

5. M.E. Stebliy, A.V. Ognev, A.G. Kolesnikov, A.S. Samardak, Program for precision measurements of magnetotransport properties “VCF-Looper”, Certificate of registration of computer program, Rospatent, №2017611442 from 02.02.2017.

6. Ermakov K.S., Ognev A.V., Samardak A.S., Chebotkevich L.A., Method of forming of an array of ferromagnetic nanowires on a stepped surface of semiconductor substrates with a copper buffer layer, Patent for invention, 2624836, published 07.07. 2017, http://www.findpatent.ru/patent/262/2624836.html

7. Ermakov K.S., Ognev A.V., Samardak A.S., Chebotkevich L.A., Method of forming of an array of nanowires on a stepped surface of Cu2Si, Patent for invention, 2628220, published 08/15/2017, http: // www.findpatent.ru/patent/262/2628220.html

8. Ognev A.V., Kolesnikov A.G., Samardak A.S., A method for creating and skyrmions arrays in a magnetic medium with a scanning probe microscope, Patent for invention, 2702810, published 11.10.2019, https://yandex.ru/patents/doc/RU2702810C1_20191011