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  1. Main
  2. Employees
  3. Vadim Robert Ohanyan
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23-88
(060) 71-03-88
vadim.ohanyan@ysu.am

Vadim Robert Ohanyan

Տեսական և մաթեմատիկական ֆիզիկայի կենտրոն
Laboratory of Theoretical Physics
Senior Researcher

Personal information

Date of birth
1976
Education
Institution
Yerevan State University
Faculty
Faculty of Physics, chair of Theoretical Physics
Date
1998 - 2001
Degree name
PhD student
Institution
Yerevan State University
Faculty
Faculty of Physics, chair of Theoretical Physics
Date
1993 - 1998
Degree name
Qualified specialist
Scientific Rank/degree
Date
2003
Degree name
Candidate
Scientific Supervisor
Nerses Ananikian
Research Topic
Phase transitions and Magnetization Plateaus in some spin systems, recursive lattices, one-dimensional chains and non-linear sigma-model
Language skills
Русский
English
Deutsch
Українська
State awards and honorary titles
2010
RA President Prize,

Publications

- Կատեգորիա -
Article
Electric-field driven flat bands in the distorted sawtooth chain via the Katsura–Nagaosa–Balatsky mechanism
Vadim Ohanyan
Lusik Amiraghyan
Michael Sekania
Marcus Kollar
Zeitschrift für Naturforschung A
2026
289 - 298
https://doi.org/10.1515/zna-2025-0381
Article
Molecular nanomagnet Cu2+⁢Ni2+⁢Cu2+ as a resource for bipartite and tripartite quantum entanglement and coherence
Azadeh Ghannadan
Hamid Arian Zad
Saeed Haddadi
Jozef Strečka
Zhirayr Adamyan
Vadim Ohanyan
Physical review. A/Physical review, A
2025
022605
Article
Tripartite entanglement in mixed-spin triangle trimmer
V. Ohanyan
Zh. Adamyan
Condensed Matter Physics
2025
33703
Article
Quantum entanglement in a mixed-spin trimer: Effects of a magnetic field and heterogeneous g factors
Vadim Ohanyan
Zhirayr Adamyan
Physical review. E
2024
034131
Article
Magnetization plateaus and enhanced magnetocaloric effect of a spin-1/2 Ising-Heisenberg and Heisenberg double sawtooth ladder with four-spin interaction
Hamid Arian Zad
Vadim Ohanyan
Azam Zoshki
Jozef Strecka
Physical review. E
2023
044132 (1-12)
Article
Electric field driven flat bands: Enhanced magnetoelectric and electrocaloric effects in frustrated quantum magnets
Vadim Ohanyan
Johannes Richter
Joerg Schuleburg
Juergen Schanck
Physical review. B./Physical review. B
2022
054420
Conference
Electric field driven flat bands: Enhanced magnetoelectric and electrocaloric effects in frustrated quantum magnets
Johannes Richter
Vadim Ohanyan
Joerg Schulenburg
Juergen Schnack
2021
9
https://pcs.ibs.re.kr/PCS_Workshops/PCS_Flatband_Program.html
Article
Magnetic and magnetoelectric properties of AFeF5 (A = Ca, Sr) spin-chain compounds
N. V. Ter-Oganessian
S. A. Guda
V. P. Sakhnenko
V. Ohanyan
Journal of Magnetism and Magnetic Materials
2020
165720(1-6)
Article
Spin-1/2 XX chain in a transverse field with regularly alternating g factors: Static and dynamic properties
Taras Krokhmalskii
Taras Verkholyak
Ostap Baran
Vadim Ohanyan
Oleg Derzhko
Physical review. B./Physical review. B
2020
144403
Article
Influence of XY anisotropy on a magnetoelectric effect in spin-1/2 XY chain in a transverse magnetic field
V. Ohanyan
Condensed Matter Physics
2020
43704
Article
Quantum Entanglement in Spin Dimers: Effects of a Magnetic Field and Heterogeneous g-Factors
Z. A. Adamyan
S. A. Muradyan
V. R. Ohanyan
Journal of Contemporary Physics (Armenian Academy of Sciences)
2020
292–298
Conference
Non-conserved magnetization, negative g-factors and ‘fire-and-ice’ spin configurations
V. Ohanyan
J. Streˇcka
O. Rojas
J. Torrico
S. Bellucci
2019
1
http://www.icmp.lviv.ua/statphys2019/programme.html
Article
Non-conserved magnetization operator and ‘fire-and-ice’ ground states in the Ising-Heisenberg diamond chain
Vadim Ohanyan
Jordana Torrico
Onofre Rojas
Journal of Magnetism and Magnetic Materials
2018
85-96
Article
Spin-1/2 XY -chain magnetoelectric: Effect of zigzag geometry
Vadim Ohanyan
Ostap Baran
Taras Verkholyak
Physical review. B./Physical review. B
2018
064415(1-13)
Conference
Interplay of Katsura-Nagaosa-Balatsky mechanism and zigzag geometry of lattice bonds: exactly solvable model of the S = 1/2 XY magnetoelectric
OHANYAN Vadim
BARAN Ostap
VERKHOLYAK Taras
2018
16
http://th.if.uj.edu.pl/indico/event/6/
Conference
Spin-1/2 XY Model of a Magnetoelectric on Zigzag Ladder: Exact Results
V. Ohanyan
O. Baran
T. Verkholyak
2017
17-18
Article
Absence of actual plateaus in zero-temperature magnetization curves of quantum spin clusters and chains
Vadim Ohanyan
Onofre Rojas
Jozef Strecka
Stefano Bellucci
Physical review. B./Physical review. B
2015
214423-12
http://journals.aps.org/prb/
Article
Magnetism-driven ferroelectricity in spin-1/2 XY chains
Vadim Ohanyan
Oleg Menchyshyn
Taras Verkholyak
Taras Krokhmalskii
Oleg Derzhko
Physical review. B./Physical review. B
2015
184427 - 7
http://journals.aps.org/prb/
Article
Magnetization non-rational quasi-plateau and spatially modulated spin order in the model of the single-chain magnet, $[\{(\mbox{CuL})_2\mbox{Dy}\}\{\mbox{Mo}(\mbox{CN})_8\}]\cdot\mbox{2CH}_3\mbox{CN}\cdot\mbox{H}_2\mbox{O}
Vadim Ohanyan
Stefano Bellucci
Onofre Rojas
Europhysics Letters (EPL)
2014
47012
http://www.epletters.net/
Article
Landau problem on the ellipsoid, hyperboloid and paraboloid of revolution
Vadim Ohanyan
Armen Nersessian
Eva Gevorgyan
Evgeniy Tolkachev
Modern Physics Letters A
2014
1450148(1-15)
http://www.worldscientific.com/worldscinet/mpla

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