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Invited researcher Maurice Skolnick
Contract number
14.Y26.31.0015
Time span of the project
2017-2021

As of 30.01.2020

32
Number of staff members
58
scientific publications
General information

Name of the project: Hybrid state of light and matter in low-dimensional quantum materials with set characteristics

Strategy for Scientific and Technological Development Priority Level: а


Goals and objectives

Research directions: Quantum transport and strong light matter coupling mode in low-dimensional materials

Project objective: Study of optical and transport characteristics of quasiparticles that are superposition of light and matter, polaritons formed in low-dimensional semiconductor structures in the strong coupling mode


The practical value of the study

  • We have investigated the mode structure of polariton lattices with Lieb symmetry. In experiments we were observing condensation of exciton polariton condensation into flat energy bands.
  • Our researchers have investigated phase transition from polariton solitons to Bose condensate of polaritons in a one-dimensional one dimensional systems.
  • The Laboratory has researched impact of spot current on exciton resonances energy shift in monolayers of dichalcogenides of transition metals.
  • The Laboratory has produced samples of a heterostructure that is a monolayer of MoSe2 between thin films of hBN. Such structures are characterized by high quality of exciton resonances.
  • We have developed a theory and produced the first samples supporting the strong coupling mode between excitons in monolayers of dichalcogenides of transition metals and resonance photonic nanostructures.
  • We have studied the mode structure of exciton-polaritons in a waveguide based on GaN with quantum wells. Our research has demonstrated existence of exciton-polaritons at room temperature.

Implemented results of research: An application for a useful model (valley transistor) was filed in 2018

Education and career development: Internships for two members of the academic staff of the Laboratory at the University of Sheffield has been organized.

Collaborations:

  • University of SHeffield (United Kingdom), Novosibirsk State Technical University (Russia): joint research
  • Foundation for Research and Technology – Hellas (Greece), Nanyang Technological University (Singapore): student exchange, collaborative research

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Whittaker C.E., Cancellieri E., Walker P.M., Gulevich D.R., Schomerus H., Vaitiekus D., Royall B., Whittaker D.M., Clarke E., Iorsh I.V., Shelykh I.A., Skolnick M.S., Krizhanovskii D.N.
Exciton Polaritons in a Two-Dimensional Lieb Lattice with Spin-Orbit Coupling. Physical Review Letters 120(9): 097401 (2018).
Konotop V.V., Zezyulin D.A.
Odd-Time Reversal PT Symmetry Induced by an Anti-PT-Symmetric Medium. Physical Review Letters, 120(12): 123902 (2018).
Sich M., Chana J. K., Egorov O. A., Sigurdsson H., Shelykh I. A., Skryabin D. V., Walker P. M., Clarke E., Royall B., Skolnick M. S., Krizhanovskii D. N.
Transition from Propagating Polariton Solitons to a Standing Wave Condensate Induced by Interactions. Physical Review Letters 120: 167402 (2018).
Shahnazaryan V., Iorsh I., Shelykh I.A., Kyriienko O.
Exciton-exciton interaction in transition-metal dichalcogenide monolayers. Physical Review B 96(11): 115409 (2017).
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