Artak A. Avetisyan
Biography
Education
Ph.D. in Solid State Physics, July 2000.
Ph.D. student, Department of Physics, Yerevan State University, 1997 to 2000.
M. Sc. (Diploma with honour) - Department of Physics, Yerevan State University, 1997

Work experience
Research fellowship "Nonlinear Optical Properties of Low Dimensional Semiconductor Systems" at the Department of Theoretical Physics of Bremen University, Germany (2001).
Post Doctoral position in the program “Novel Electronic States and Quantum Phase Transitions Induced by a Magnetic Field in Two-Dimensional Nanostructures” at the Department of Physics of the Cyprus University (2003 – 2005).
Post Doctoral position in the program “Transport in Graphene” at the Condensed Matter Theory group, University of Antwerp (2008 – 2010).
Researcher at the chair of Solid State Physics, Yerevan State University from 1999 at the present.
Lecturer (docent), courses in “nanophysics” and “ semiconductor heterojunctions”.

Research experience
Phase transitions induced by a magnetic field in nanostructures. Few electron systems in quantum dots: Wigner molecules and broken-symmetry phase with spin-singlet configuration.
Excitons, exciton-donor complexes, and impurity states in semiconductor nanostructures in external fields.
Nonlinear optical properties of low dimensional semiconductor systems: biexcitonic transitions in quantum wells in the field of short laser pulses. Coherent phenomena in quantum dots induced by laser pulses.
Optical properties of semiconductor nanostructures with nonparabolic dispersion law of charge carriers (Kane's dispersion law) and Aharonov-Bohm effect in such semiconductor nanorings.
Impurity states near semiconductor-insulator-metal interface in external electric and magnetic fields.
Electronic and nonlinear optical properties of multilayer graphene systems in the presence of external electric field.

Scientific interests
Transport and nonlinear optical properties of multilayer graphene systems.
Electron-electron interaction in nanosructures.
Phase transitions of electron-hole system in graphene multilayers:
the formation of Bose-Einstein condensate of excitons and exciton polaritons.
Wigner crystal and paired electron phases in graphene systems in magnetic field

Languages
Armenian, Russian, English, Greek, German

artakav@ysu.am

Artak A. Avetisyan

Researcher | Faculty of Physics - Solid State Physics Research Laboratory
 
 

Article

G.P. Djotyan, J.S. Bakos, Zs. Sörlei, J. Szigeti, D. Dzsotjan, A.P. Djotyan, A.A. Avetisyan

Coherent generation of superposition quantum states by short frequency-chirped laser pulses | Proceedings of International Conference “Laser Physics-2006”, Ashtarak (2006), Armenia p.85-88

A.A.Avetisyan, A.P.Djotyan, K.Moulopoulos

Coulomb repulsive correlation in A(3) B(5)semiconductor quantum dots in the presence of a magnetic field | Phys. Stat. Sol. (c), 3, No 3, 532-535 (2006).

G.P. Djotyan, J.S. Bakos, Zs. Sörlei, J. Szigeti, D. Dzsotjan, A.P. Djotyan, A.A. Avetisyan

Coherent generation of superposition quantum states by short frequency-chirped laser pulses | Proceedings of International Conference “Laser Physics-2006”, Ashtarak, Armenia p.85-88. (2006)

M.Szot, K.Karpierz, A.Avetisyan, A. Djotyan, J.Kossut , M.Grynberg

The nature of potential fluctuations in the MBE CdTe/CdMgTe quantum well in a magnetic field: theory and experiment | J. Acta Physica Polonica 110, No3, pp 379-387 (2006)

A.A.Avetisyan, A.P.Djotyan, E.M.Kazaryan , K.Moulopoulos

Exciton-donor complexes in a semiconductor quantum dot in a magnetic field | Phys. Stat. Sol. (c) 3, No. 4, pp. 1087–1090 (2006)
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Thesis

A. Avetisyan, A. Djotyan, K. Moulopoulos

Tunable excitonic absorption in gapped graphene systems | Laser Physics 2017. 2017, 37-38 pp. |

A.A. Avetisyan, A.V. Ghazaryan, A.P. Djotyan, A.A. Kirakosyan , K. Moulopoulos

Optical properties of magnetoexcitons in semiconductor quantum rings with narrow bandgap | Abstracts of the XXXIX International School and Conference on the Physics of Semiconductors - "Jaszowiec-2010" (19-24 June 2010) p. TuP 11, Poland

A.P.Djotyan, A.A.Avetisyan, F.M. Peeters

Shallow D- states near different interfaces | International Conference “Laser Physics-2009” , 13-16 October 2009, Ashtarak, Armenia (oral presentation)

Y.L.Hao, A.P.Djotyan, A.A.Avetisyan, F.M.Peeters

Shallow D- states near semiconductor-metal interface | Abstracts of International Conference “ DyProSo” 2009, Belgium, Antwerpen, p. 27

Y.L.Hao, A.P.Djotyan, A.A.Avetisyan, F.M.Peeters

Shallow donor states near a semiconductor-insulator-metal interface C29 | The Abstracts of Joint General Scientific meeting 2009 , Universiteit Hasselt, Belgium, April 1 (2009) p.5
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