Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Oleg Tchernyshyov"'
Autor:
Oleg Tchernyshyov
Publikováno v:
SciPost Physics Lecture Notes, p 85 (2024)
These lecture notes from the 2023 Summer School "Principles and applications of symmetry in magnetism" introduce the reader to the classical field theory of ferromagnets and antiferromagnets.
Externí odkaz:
https://doaj.org/article/210e0c11cd804c649ca4586a4431c67f
Publikováno v:
SciPost Physics, Vol 12, Iss 5, p 159 (2022)
When a magnetic skyrmion is modeled as a point particle, its dynamics depends on the precise definition of the skyrmion center. The guiding-center position, defined as the first moment of the skyrmion density, exhibits Thiele's massless dynamics; pos
Externí odkaz:
https://doaj.org/article/43cd8ec2b16b47a6aaae39073eba57bf
Publikováno v:
SciPost Physics, Vol 11, Iss 6, p 108 (2021)
The relation between symmetries and conservation laws for solitons in a ferromagnet is complicated by the presence of gyroscopic (precessional) forces, whose description in the Lagrangian framework involves a background gauge field. This makes can
Externí odkaz:
https://doaj.org/article/e733931c18534b94b30deeb6777489c0
Publikováno v:
Physical Review B. 107
We theoretically investigate the interaction between magnons and a Skyrmion-textured domain wall in a two-dimensional antiferromagnet and elucidate the resultant properties of magnon transport. Using supersymmetric quantum mechanics, we solve the sca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e67c80e773c695fd779264f2023a83bb
https://doi.org/10.1103/physrevb.107.184432
https://doi.org/10.1103/physrevb.107.184432
Publikováno v:
SciPost Physics, Vol 10, Iss 3, p 078 (2021)
We discuss a geometric perspective on chiral ferromagnetism. Much like gravity becomes the effect of spacetime curvature in theory of relativity, the Dzyaloshinski-Moriya interaction arises in a Heisenberg model with nontrivial spin parallel trans
Externí odkaz:
https://doaj.org/article/e62d3200040c4b53b2cd970e68b7d84f
Autor:
Oleg Tchernyshyov
We derive a unified theory of spin and charge degrees of freedom in a ferromagnet. The spin-transfer torque and spin electromotive force are examined from the coarse-grained perspective of collective coordinates. The resulting equations of motion ref
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43ee8a024f0dcd4c7d2f9e03a58bf7d8
http://arxiv.org/abs/2208.12800
http://arxiv.org/abs/2208.12800
Publikováno v:
Physical Review B. 105
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ef328ae52d11fc25ddccdc447af6c99
https://doi.org/10.1103/physrevb.105.174430
https://doi.org/10.1103/physrevb.105.174430
Autor:
Se Kwon Kim, Oleg Tchernyshyov
This paper gives a pedagogical introduction to the mechanics of ferromagnetic solitons. We start with the dynamics of a single spin and develop all the tools required for the description of the dynamics of solitons in a ferromagnet.
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Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f80785411e91dce87f295d7fa05a4ab
Autor:
Rocio Gonzalez-Meza, Oleg Tchernyshyov
Publikováno v:
Journal of Magnetism and Magnetic Materials. 562:169749
The gyroscopic force acting on a ferromagnetic soliton reflects the tendency of spins to precess. Its components increase linearly with (generalized) velocities of the soliton. The proportionality coefficients form the gyroscopic tensor, a generaliza
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30ca2840aedfaf42e2076c619503fb76
https://doi.org/10.1016/j.jmmm.2022.169749
https://doi.org/10.1016/j.jmmm.2022.169749
Autor:
Xingjian Di, Oleg Tchernyshyov
Publikováno v:
SciPost Physics, Vol 11, Iss 6, p 108 (2021)
The relation between symmetries and conservation laws for solitons in a ferromagnet is complicated by the presence of gyroscopic (precessional) forces, whose description in the Lagrangian framework involves a background gauge field. This makes canoni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cae89b131a39a3003d01dc7a14933167
http://arxiv.org/abs/2105.03553
http://arxiv.org/abs/2105.03553