Zobrazeno 1 - 10
of 573
pro vyhledávání: '"Solovyev, A V"'
Publikováno v:
Physical Review B 110, 205116 (2024)
The exchange interactions in insulators depend on the orbital state of magnetic ions, obeying certain phenomenological principles, known as Goodenough-Kanamori-Anderson rules. Particularly, the ferro order of alike orbitals tends to stabilize antifer
Externí odkaz:
http://arxiv.org/abs/2405.17864
Autor:
Solovyev, I. V.
Publikováno v:
J. Phys.: Condens. Matter 36, 223001 (2024)
In 1987, Liechtenstein et al. came up with the idea to formulate the problem of interatomic exchange interactions, which would describe the energy change caused by the infinitesimal rotations of spins, in terms of the magnetic susceptibility. The for
Externí odkaz:
http://arxiv.org/abs/2308.04799
Autor:
Kazinski, P. O., Solovyev, T. V.
Publikováno v:
Phys. Rev. D 108, 016004 (2023)
The explicit compact expression for the susceptibility tensor of a single photon wave packet on the photon mass-shell is derived. It is assumed that the probe photon is hard, the test photon is soft, and their total energy is below the electron-posit
Externí odkaz:
http://arxiv.org/abs/2303.02821
Autor:
Solovyev, I. V.
Publikováno v:
Physical Review B 107, 054442 (2023)
We investigate abilities of various linear response based techniques for extracting parameters of antisymmetric Dzyaloshinskii-Moriya (DM) interactions from the first-principles electronic structure calculations. For these purposes, we further elabor
Externí odkaz:
http://arxiv.org/abs/2212.02808
Autor:
Kazinski, P. O., Solovyev, T. V.
Publikováno v:
P.O. Kazinski, T.V. Solovyev, Eur. Phys. J. C 82, 790 (2022)
The radiation of photons by electrons is investigated in the framework of quantum electrodynamics up to the second order in the coupling constant $e$. The $N$-particle, coherent, and thermal initial states are considered and the forms of the electron
Externí odkaz:
http://arxiv.org/abs/2205.14638
Publikováno v:
Physical Review B 106, L180401 (2022)
The on-site Coulomb repulsion $U$ is the key ingredient for describing the magnetic properties of Mott insulators, leading to a popular believe that many limitations of the density-functional theory based methods can be cured by artificially incorpor
Externí odkaz:
http://arxiv.org/abs/2205.08690
Autor:
Solovyev, I. V., Nikolaev, S. A., Ushakov, A. V., Irkhin, V. Yu., Tanaka, A., Streltsov, S. V.
Publikováno v:
Physical Review B 105, 014415 (2022)
Based on the density functional theory, we examine the origin of ferromagnetism in the Weyl semimetal Co$_3$Sn$_2$S$_2$ using different types of response theories. We argue that the magnetism of Co$_3$Sn$_2$S$_2$ has a dual nature and bears certain a
Externí odkaz:
http://arxiv.org/abs/2111.02577
Autor:
Solovyev, I. V.
Publikováno v:
Phys. Rev. B 103, 104428 (2021)
We critically reexamine the problem of interatomic exchange interactions, which describe the total energy change caused by infinitesimal rotations of spins near some equilibrium state. For the small variations, such interactions can be always related
Externí odkaz:
http://arxiv.org/abs/2011.10204
Autor:
Komleva, Evgenia V., Irkhin, Valentin Yu., Solovyev, Igor V., Katsnelson, Mikhail I., Streltsov, Sergey V.
First-principles calculations and a model consideration of magnetically frustrated layered material PdCrO$_2$ are performed. The results on the exchange parameters are in agreement with the experimental data on the Curie-Weiss temperature ($\theta$).
Externí odkaz:
http://arxiv.org/abs/2007.06234
Autor:
Nikolaev, S. A., Solovyev, I. V.
Publikováno v:
Phys. Rev. B 102, 014414 (2020)
We show how low-energy electronic models derived from the first-principles electronic structure calculations can help to rationalize the magnetic properties of two lacunar spinel compounds GaM4S8 with light (M=V) and heavy (M=Mo) transition-metal ele
Externí odkaz:
http://arxiv.org/abs/2004.11548