Ֆիզիկայի ֆակուլտետ
Faculty of Physics
The process of training specialists in the field of physics and mathematics began in 1922 in YSU.:
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Anna L. Asatryan

Associate Professor | Chair of Solid States
Education
1994-1999 Chair of Solid State Physics, Yerevan State University,
PhD in Physics, Thesis title: “Theo¬retical investigation of relaxation and magnetic characteristics of low-dimensional electronic systems”, degree awarded in January 2000.
1986-1991 Chair of Solid State Physics, Yerevan State University, Master’s Degree with Honor Diploma.

Professional Experience
2008-present Associate Professor, Chair of Solid State Physics, Yerevan State University
2020- present Supervisor, Theoretical Research Group on Theoretical Investigation of Exciton Formation and Recombination Assisted by Phonons in Colloidal Quantum Dots with InP Core (20TTWS-1C014)
2019- present Senior Researcher, Research Laboratory of Solid State Physics, YSU
2021-present Researcher, Theoretical Research Group on The Control of Hot-Carrier Dynamics in Graphene by External Fields and by Choosing of Polar Substrates. The Improvement and Practical Implementation of the Graphene-Based Hot-Carrier Transistor Model (21AG-1C048)
2018-2020 Researcher, Theoretical Research on Gate Control of Phonon-Mediated Spin Relaxation in Graphene on Various Substrates: The Role of Substrate-Induced Spin-Orbit Interaction (18T-1C247)
2015-2017 Researcher, Theoretical Research on Phonon-Mediated Decoherence Control of Spin and Charge States in Single and Double Quantum Dots Embedded in Phonon Cavity (15T-1C363)
2013-2015 Researcher, Theoretical Research on Spin Transitions Induced by Electron-Phonon Interaction and Raman Scattering in Graphene and Silicon Quantum Dots (13-1C196)
2001-2008 Assistant Professor, Chair of Solid State Physics, Yerevan State University
2004-2009 Researcher, Armenian State Program “Semiconductor Nanoelectronics”
1992-2010 Researcher, Research Group on Theoretical Investigation of Kinetic and Optical Properties of Nanostructures, Yerevan State University
1992-2001 Senior Laboratory Assistant, Chair of Solid State Physics, Yerevan State University
1991-1992 Researcher, Institute of Applied Physics Problems, National Academy of Sciences, Republic of Armenia

Specialization: main field
Theory of Solid State and Semiconductor Physics

Research Interests
Transport properties of semiconductor quantum wells, wires and dots
Phonons in device-relevant nanostructures
Polaron effect in polar semiconductor quantum wires and dots
Hot carrier relaxation processes in nanostructures

Teaching
More than Twenty Years of Teaching Experience in Faculty of Physics, Yerevan State University
Undergraduate courses
Introduction to Solid State Physics
Introduction to Semiconductor Physics
Physics of Magnetic Phenomena

Postgraduate courses
Quantum Theory of Solids
Computational Methods in Solid State Physics
Phonons in Inhomogeneous Solid-State Structures

Grants
ANSEF (Grant No. condmatth-3821, “Effect of phonon confinement on the spin relaxation assisted by electron-phonon interaction in quantum dot systems”, 2015)
SCS-CNRS-2013 (Grant No. 13IE-038, “Coupled plasmon–phonon modes and carrier kinetics in single semiconductor nanowires”, 2014)
ANSEF (Grant No. condmatth-2955, “New Phonon-Assisted Carrier Relaxation Pathways in Colloidal Core-Shell Quantum Dots in the Presence of Uniform Magnetic and Electric Fields”, 2012)
Open Society Foundations Armenia, University of Cambridge, Sabbatical leave (Cambridge Colleges Hospitality Scheme, 2010)
ANSEF (Grant No. 05-PS-nano-0811-228, “Energy Relaxation By Multiphonon Processes In Quantum Dots”, 2006)
ANSEF (Grant No. 04-ps-condmatth 813-95, “Effect of the Strain Field on the Electron States and Electron-Polar Optical Phonon Interaction in Lens-Shaped Quantum Dots”, 2004)
INTAS (Project No. 99-00928, “Stranski-Krastanow Quantum Dots in a Microcavity”, 03.10.2000-31.07.2003)
INTAS Young NIS Scientist Conference Grant (2002).
ANSEF (Grant No. PS24-01, “Investigation of Relaxation Processes in Nanostructures”, 2002)
CRDF (Project No.375100 “Carrier Scattering in Quantum Nanosystems” , 1999)

Conferences
Participation in International and Republican Conferences and Symposia on Solid State and Semiconductor Physics. In particular
International Conference on Extended Defects in Semiconductors (EDS2002), University of Bologna, Italy (1-6 June, 2002)
College on Physics of Nano-Devices, ICTP, Trieste, Italy, (10-21 July, 2006)
19th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures (EDISON'19), University of Salamanca, Spain, (29 June-2 July, 2015)
18th International Conference on II-VI Compounds and Related Materials (II-IV 2017), San Juan, Puerto Rico (24-29 September, 2017)
International Young Scientist School and Workshop “Advanced Nanomaterials and Methods” (ANAM’2019), Yerevan, Armenia (25 September-2 October, 2019)

annaa@ysu.am

A. Asatryan , A. Movsisyan, A. Vartanian
External electric and magnetic field effects on the polaron in a wurtzite nitride nanowire embedded in a nonpolar matrix
2021 | Article
European Physical Journal B, 2021, N 94 (3), 70/8
Influence of image charges on the impurity-related optical properties of near-surface quantum wells under a transverse electric field
2019 | Article
Physica E: Low-dimensional Systems and Nanostructures, 2019, 113, 115-120 էջ
Influence of image charge effect on the binding energy of hydrogen-like donor impurity in a near-surface quantum well under transverse electric field
2019 | Article
Physica E: Low-dimensional Systems and Nanostructures, 2019, 106, 1-4 էջ
Energy loss rate of hot electrons due to polar-optical phonon modes in a semiconductor nanowire under transverse electric field
2018 | Article
Physica B-Condensed Matter, 2018, 550, 340-346 էջ
A.Asatryan , A.Stepanyan, M.Yeranosyan , A.Kirakosyan , A.Vartanian
The influence of the transverse electric field on the hot electron energy loss rate via polar-optical phonons in nanowires
2018 | Article
International Conference on Microwave & THz Technologies and Wireless Communications (IRPhE’2018), El-P-3
Polaron and dielectric mismatch effects on impurity-related optical absorption and refractive index changes in a spherical quantum dot
2018 | Article
Superlattices and Microstructures, 2018, 113, 442-458 pp.
Impurity-Bound Polaronic States in ZnSe Quantum Dots Under Electric Field: Image Charge Effect
2018 | Article
JOURNAL OF ELECTRONIC MATERIALS, 2018, Vol. 47, Issue 8, 4303-4307 pp.
Influence of image charge effect on impurity-related optical absorption coefficients and refractive index changes in a spherical quantum dot
2017 | Article
Superlattices and Microstructures. 2017, 103, pp. 205-212
Energy-loss rate of hot electrons due to confined acoustic phonon modes in a semiconductor quantum wire under transverse electric field
2017 | Article
Physica B-Condensed Matter. 2017, 519, pp. 102-107
A. L. Vartanian , A. L. Asatryan , A. A. Mkhitaryan, S. S. Avetisyan, A. A. Kirakosyan
Effects of electric field and image charges on the impurity-related optical absorption coefficients in a spherical quantum dot (Էլեկտրական դաշտի և պատկեր-լիցքերի ազդեցությունը խառնուկային օպտիկական կլանման գործակիցների վրա գնդային քվանտային կետում)
2017 | Article
ԵՊՀ գիտական տեղեկագիր, Ֆիզիկա և մաթեմատիկա, 2017, հ. 51, #1, էջ 124–127
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Պինդ մարմնի ֆիզիկայի լաբորատոր աշխատանքներ մաս I
2016 | Book
ԵՊՀ հրատ.: 2016թ․, 168 էջ
V. Arzumanyan, K. Vardanyan, A. Asatryan , A. Vartanian
Rashba and Dresselhaus spin-orbit coupling effects on the electronic structure of quantum wires under the influence of in-plane magnetic field
2016 | Thesis
4th International Symposium “Optics and its Applications”. 2016, p. 100
Electric field effect on hot-electron energy-loss rate via LA-phonon scattering in a cylindrical quantum wire
2016 | Thesis
4th International Symposium “Optics and its Applications”. 2016. p. 89
Influence of image charge effect on impurity-related optical absorption coefficient in a spherical quantum dot
2016 | Thesis
4th International Symposium “Optics and its Applications”. 2016, p. 121
Image Charge and Electric Field Effects on Hydrogen-like Impurity-bound Polaron Energies and Oscillator Strengths in a Quantum Dot
2016 | Article
Journal of ELECTRONIC MATERIALS. 2016, 45. 11, 5847-5852 pp.
Electric field and image charge effects on impurity-bound polarons in a CdS colloidal quantum dot embedded in organic matrices
2016 | Article
Physica B: Physics of Condensed Matter. 2016, 503, 70-74 pp.
Պինդ մարմնի ֆիզիկայի խնդիրներ, Մաս I
2015 | Book
Ուս. ձեռնարկ: ԵՊՀ հրատ., 2015թ․, 154 էջ
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Effect of image charges on the impurity-bound polaronic states in colloidal quantum dots embedded in different organic matrices
2015 | Thesis
International Symposium and Young Scientist School on Disordered and Ordered Materials Analysis and Characterization, 2015, p. 74-75
Impurity-bound polaronic states under an external electric field in quantum dots: Image charge effect
2015 | Thesis
3rd International Symposium “Optics and its Applications”, 2015, p. 119
The influence of electric field on the quasi-confined and interface polaron basic parameters in a wurtzite nitride quantum wire
2015 | Article
Journal of Physics: Conference Series 647, 012048, 4 pp. (2015). dx.doi.org
The influence of electric field on the interface polaron properties in a wurtzite nitride nanowire
2015 | Article
Superlattices and Microstructures 77, 286-294 (2015). dx.doi.org/10.1016
Polaronic effects due to quasi-confined optical phonons in wurtzite nitride nanowire in the presence of an electric field
2015 | Article
Superlattices and Microstructures 83, 588-594 (2015). dx.doi.org/10.1016
Պինդ մարմնի ֆիզիկայի խնդիրներ. Մաս 1
2015 | Book
Երևան, ԵՊՀ հրատ., 2015թ., 154 էջ
Influence of both electric and magnetic fields on the polaron properties in a finite-potential quantum well wire
2013 | Article
Physica E 47, 134-140, 2013. dx.doi.org/10.1016
Phonon confinement effect on the polaron basic parameters in nanowires in the presence of external fields
2012 | Article
Journal of Physics: Conference Series, Volume 350, Issue 1, pp. 012022 (2012), 6 pp.. dx.doi.org
Confined and interface polarons in cylindrical quantum wire in perpendicular magnetic and electric fields
2011 | Article
Proc. VIII Int. Conf. “Se-miconductor Micro and Nanoelectronics”, Yerevan, 2011, pp. 163-166
Quantum capture of electrons and intra-dot relaxation by means of Auger processes in quantum dots
2010 | Article
Physica E, Volume 42, Issue 4, p. 878-880 (2010). dx.doi.org/10.1016
Hot-electron energy-loss rate via LA-phonon scattering in InGaAs quantum wire
2008 | Article
Physica Status Solidi (B), vol. 245, issue 5, pp. 963-966 (2008). dx.doi.org/10.1002
Hot-electron energy-loss rate via PO-phonon scattering in CdZnSe/ZnSe quantum wire
2007 | Article
Physica B, Volume 389, Issue 2, p. 258-262 (2007). dx.doi.org/10.1016
Energy-loss rate of hot electrons via LA-phonon scattering in free standing quantum wire
2007 | Article
ԵՊՀպինդ մարմնի ‎ֆիզիկայի ամբիոնի հիմնադրման 50-ամյակին նվիրված գիտաժողովի նյութեր, Երևան, 2007թ., էջ 84-89
Պինդ մարմնի ֆիզիկա
2006 | Book
Լաբորատոր աշխատանքներ, ԵՊՀ, Երևան, 2006թ., 102 էջ
The energy-loss rate via polar-optical phonon scattering in quantum wires
2005 | Article
Physica E, v. 28, iss. 4, p. 545-551 (2005). dx.doi.org/10.1016
Electron interaction with confined and interface polar optical phonons and electron mobility in quantum wires
2003 | Article
Physica E, Volume 16, Issue 2, p. 230-236 (2003). dx.doi.org/10.1016
The polaronic shift of exciton binding energy in quantum dots with a degenerate valence band
2002 | Article
J. Phys.: Condens. Matter, Volume 14, Issue 48, pp. 13357-13365 (2002). iopscience.iop.org
Scattering of electron by confined and interface PO-phonons in quantum wires
1999 | Article
J. Contemp. Phys. 34, No.2, 92-97 (1999)
Magnetic susceptibility of size-quantized wire
1998 | Article
“Diamagnetic-paramagnetic” size transition in wires. J. Contemp. Phys. 33, No.2, 55-63 (1998)
Confined and Interface Phonon-Induced Shift in Shallow Donor Binding Energy of Quantum Wires
1998 | Article
Physica Status Solidi (B), vol. 210, issue 2, pp. 711-715 (1998). dx.doi.org/10.1002
Mobility Calculation of Quasi-Two-Dimensional Electron Gas by the Energy Loss Method
1997 | Article
Physica Status Solidi (B), vol. 203, Issue 1, pp.169-178 (1997). Phys. Stat. Sol. B 203, 169-178 (1997). dx.doi.org/10.1002
Mobility calculation of quasi-two-dimensional charge carriers in semiconductor structures by energy loss method. 2. Scattering on surface roughnesses and alloy disorder of quantum well
1995 | Article
J. Contemp. Phys. 30, No.4, 149-155 (1995)
Mobility calculation of quasi-two-dimensional charge carriers in semiconductor structures by energy loss method. 1. Scattering on charged impurities
1994 | Article
J. Contemp. Phys. 29, No.3, 101-109 (1994)