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

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

Interaction of Electromagnetic Field with Gated Graphene Bilayer | Armenian Journal of Physics, 12, 1, 2019, 33-39 էջ

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

Tunable Excitons in Bilayer Graphene with Opened Energy Gap | Physics of Atomic Nuclei, 81, 6,2018, 799-803 էջ

A. P. Djotyan, A. A. Avetisyan

Excitonic absorption in gapped graphene systems (Էքսիտոնային կլանումը գրաֆենի համակարգերում՝ բացված էներգիական ճեղքի առկայությամբ) | ԵՊՀ գիտական տեղեկագիր, Ֆիզիկա և մաթեմատիկա, 2017, հ. 51, #1, էջ 93–96 |

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

Tunable excitons in gated graphene systems | Proceedings of SPIE-Progress in Biomedical Optics and Imaging, 2017, 10337, 1033703, 1-11 pp. |

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

Effect of a perpendicular magnetic field on the shallow donor states near a semiconductor-metal interface | Phys. Rev. B 87, 075313-9 (2013)
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Thesis

A.A.Avetisyan, B. Partoens, F. M. Peeters

Electric field tuning of the band gap in graphene multilayers | Phys. Rev. B 79, p 035421-7, (2009). ( has been selected for the February 9, 2009, issue of Virtual Journal of Nanoscale Science & Technology http://www.vjnano.org)

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

Shallow donor states near a semiconductor-insulator-metal interface | Phys. Rev. B 80, p. 035329-10, (2009)

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

Magnetoexcitons in Semiconductor Quantum Rings with Complicated (Kane’s) Dispersion Law | Acta Physica Polonica A.116, p.826, (2009)

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

Competing broken-symmetry and rotationally symmetric spin-singlet states in a few-electron quantum dot in a magnetic field | Physica E 40, 1637 (2008)

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

Exciton - donor complexes in semiconductor quantum dots in a magnetic field: infinite and finite potential barriers | Physica E 40, 1648 (2008)
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