Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Proskurin, Igor"'
Publikováno v:
Phys. Rev. B 105, 224420 (2022)
Level attraction is a type of mode hybridization in open systems where instead of forming a hybridization gap, the energy spectrum of two modes coalesce in a region bounded by exceptional points. We demonstrate that this phenomenon can be realized in
Externí odkaz:
http://arxiv.org/abs/2201.06547
Spin canting and complex spin textures in antiferromagnetic materials can often be described in terms of Dzyaloshinskii-Moriya interactions (DMI). Values for DMI parameters are not easily measurable directly, and often inferred from other quantities.
Externí odkaz:
http://arxiv.org/abs/2105.06430
Autor:
Proskurin, Igor, Stamps, Robert L.
Publikováno v:
Phys. Rev. B 103, 195409 (2021)
Level attraction can appear in driven systems where instead of repulsion two modes coalesce in a region separated by two exceptional points. This behavior was proposed for optomechanical and optomagnonic systems, and recently observed for dissipative
Externí odkaz:
http://arxiv.org/abs/2011.02520
Autor:
Proskurin, Igor, Stamps, Robert L.
We discuss several aspects of chiral optomagnonics in antiferromagnetic insulators by considering common symmetries between the electromagnetic field and spin excitations. This approach allows us to look at optical and magnetic materials from similar
Externí odkaz:
http://arxiv.org/abs/2006.07399
Publikováno v:
New J. Phys. 21, 095003 (2019)
We discuss various microscopic mechanisms for level attraction in a hybridized magnon-photon system of a ferromagnet in a microwave cavity. The discussion is based upon the electromagnetic theory of continuous media where the effects of the internal
Externí odkaz:
http://arxiv.org/abs/1904.11570
An optical vortex beam carries orbital angular momentum $\ell$ in addition to spin angular momentum $\sigma$. We demonstrate that a Landau-quantized two dimensional electron system absorbs the optical vortex beam through modified selection rules, ref
Externí odkaz:
http://arxiv.org/abs/1904.03083
Autor:
Kishine, J., Sinitsyn, Vl. E., Bostrem, I. G., Proskurin, Igor, Goncalves, F. J. T., Togawa, Y., Ovchinnikov, A. S.
Publikováno v:
Phys. Rev. B 100, 024411 (2019)
We present a theory of standing spin wave (SSW) in a monoaxial chiral helimagnet. Motivated by experimental findings on the magnetic field-dependence of the resonance frequency in thin films of Cr${}$Nb$_{3} $S${}_{6}$[Goncalves et al., Phys. Rev. B9
Externí odkaz:
http://arxiv.org/abs/1903.11675
Publikováno v:
Phys. Rev. B 98, 220411 (2018)
Collective dynamics of topological magnetic textures can be thought of as a massive particle moving in a magnetic pinning potential. We demonstrate that inside a cavity resonator this effective mechanical system can feel the electromagnetic radiation
Externí odkaz:
http://arxiv.org/abs/1809.10091
Publikováno v:
Phys. Rev. B 98, 134422 (2018)
In the circular photogalvanic effect, circularly polarized light can produce a direct electron photocurrent in metals and the direction of the current depends on the polarization. We suggest that an analogous nonlinear effect exists for antiferromagn
Externí odkaz:
http://arxiv.org/abs/1806.02442
Publikováno v:
Phys. Rev. Lett., 119, 177202 (2017)
As first demonstrated by Tang and Cohen in chiral optics, the asymmetry in the rate of electromagnetic energy absorption between left and right enantiomers is determined by an optical chirality density [1]. Here, we demonstrate that this effect can e
Externí odkaz:
http://arxiv.org/abs/1710.01023