Features of unidirectional magnetic anisotropy in multilayer nanostructured systems [Co–Al<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e153" altimg="si63.svg"><mml:msub><mml:mrow/><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math>O<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e161" altimg="si64.svg"><mml:msub><mml:mrow/><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:math>]

Eroshenko, G.N.; Pudonin, F. A.; Sherstnev, I. A.; Noskova, D.D.; Egorov, D. A.; Shadrin, A.M.

doi:10.1016/j.jmmm.2021.168497

Cited by 1 publication

(1 citation statement)

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“…In addition, even the presence of such anisotropy (for example, ε), when the polarization rotation angles are compared with the structure rotated by 180 • , for the light this circular anisotropy remains twisted in the same direction, and therefore, the optical nonreciprocity effect should be absent. It can be assumed that the nonreciprocity effect will arise when some unidirectional optical anisotropy appears in the structure, as is the case, for example, in structures with FeNi and Co [10,17] magnetic islands. Unidirectional magnetic anisotropy arises in these structures, which may be responsible for the appearance of the optical nonreciprocity effect in them.…”

Section: Measurementmentioning

confidence: 99%

Optical nonreciprocity in multilayer nanoisland systems of [Ag–Al₂O₃]_N

Noskova

Pudonin

Sherstnev

et al. 2023

J. Phys.: Condens. Matter

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We study the effect of optical nonreciprocity in [Ag--Al2<\sub>O<sub>3<\sub>]<sub>N<\sub> multilayer structures. The percolation threshold for Ag films was found to be d* ≈ 2 nm. An anomalously large optical nonreciprocity effect was found in the structures with Ag island layers. This effect appeared as a change in the reflected light polarization (Δω) when the sample was rotated around its axis from the initial position by 180°. The effect magnitude reached Δωmax<sub> ≈ 7°. We suggest that a possible mechanism for the optical nonreciprocity effect in these structures can be related to the excitation of localized plasmons in Ag islands. We show that Δω essentially depends on the interlayer and intralayer interaction between Ag layers in multilayer structures and is suppressed in the case of strong intralayer and interlayer interaction of plasma oscillations.

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Section: Measurementmentioning

confidence: 99%