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

Vadim Robert Ohanyan

Research Institute of Physics
Laboratory of Theoretical Physics
Senior researcher

Personal information

Date of birth
1976
Scientific interests
  • Quantum Magnetism, Statistical physics, Integrable models
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
Institution
Yerevan Physics Institute
Date
2003
Degree name
Candidate
Specialty
Physico-mathematical sciences
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
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
2025
022605
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
2022
054420
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
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
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
2018
064415(1-13)
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
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
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
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
Article
Correlation functions in one-dimensional spin lattices with Ising and Heisenberg bonds
Vadim Ohanyan
Stefano Bellucci
EUROPEAN PHYSICAL JOURNAL B
2013
446
http://epjb.epj.org/
Article
Exact description of the magnetoelectric effect in the spin-1/2 XXZ-chain with Dzyaloshinskii-Moriya interaction
Michael Brockmann
Andreas Klumper
Vadim Ohanyan
Physical Review B
2013
054407
http://journals.aps.org/prb/
Article
Magnetocaloric effect in spin-1/2 XX chains with three-spin interactions
M. Topilko
T. Krohkmalskii
O. Derzhko
V. Ohanyan
EUROPEAN PHYSICAL JOURNAL B
2012
278
http://epjb.epj.org/
Article
Magneto-thermal properties of the Heisenberg-Ising orthogonal-dimer chain with triangular XXZ-clusters
Vadim Ohanyan
Andreas Honecker
Physical Review B
2012
054412(1-17)
http://journals.aps.org/prb/
Article
Exactly solvable mixed-spin Ising-Heisenberg diamond chain with biquadratic interactions and single-ion anisotropy
Onofre Rojas
S. M. de Souza
Vadim Ohanyan
Martiros Khurshudyan
Physical Review B
2011
094430
http://journals.aps.org/prb/
Article
Lattice distortions in sawtooth chain with Heisenberg and Ising bonds
S. Bellucci
V. Ohanyan
EUROPEAN PHYSICAL JOURNAL B
2010
531-541
http://epjb.epj.org/

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