Interplay between collective modes in hybrid electron-gas-superconductor structures

M. V. Boev; I. G. Savenko; V. M. Kovalev

doi:10.1103/PhysRevB.101.165430

Interplay between collective modes in hybrid electron-gas-superconductor structures

M. V. Boev, I. G. Savenko, V. M. Kovalev

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3 Scopus citations

Abstract

We study hybridization of collective plasmon and Carlson-Goldman-Artemenko-Volkov modes in a hybrid system, consisting of two-dimensional layers of electron gas in the normal state and superconductor, coupled by long-range Coulomb forces. The interaction between these collective modes is not possible in a regular single-layer two-dimensional system since they exist in nonoverlapping domains of dimensionless parameter ωτ, where ω is the external electromagnetic field frequency and τ is electron-scattering time. Thus, in a single-layer structure, these modes are mutually exclusive. However, the coupling may become possible in a hybrid system consisting of two separated in space materials with different properties, in particular, the electron-scattering time. We investigate the electromagnetic power absorption by the hybrid system and reveal the conditions necessary for the hybridization of collective modes.

Original language	English
Article number	165430
Journal	Physical Review B
Volume	101
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevB.101.165430
State	Published - 15 Apr 2020
Externally published	Yes

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title = "Interplay between collective modes in hybrid electron-gas-superconductor structures",

abstract = "We study hybridization of collective plasmon and Carlson-Goldman-Artemenko-Volkov modes in a hybrid system, consisting of two-dimensional layers of electron gas in the normal state and superconductor, coupled by long-range Coulomb forces. The interaction between these collective modes is not possible in a regular single-layer two-dimensional system since they exist in nonoverlapping domains of dimensionless parameter ωτ, where ω is the external electromagnetic field frequency and τ is electron-scattering time. Thus, in a single-layer structure, these modes are mutually exclusive. However, the coupling may become possible in a hybrid system consisting of two separated in space materials with different properties, in particular, the electron-scattering time. We investigate the electromagnetic power absorption by the hybrid system and reveal the conditions necessary for the hybridization of collective modes.",

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AU - Boev, M. V.

AU - Savenko, I. G.

AU - Kovalev, V. M.

PY - 2020/4/15

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N2 - We study hybridization of collective plasmon and Carlson-Goldman-Artemenko-Volkov modes in a hybrid system, consisting of two-dimensional layers of electron gas in the normal state and superconductor, coupled by long-range Coulomb forces. The interaction between these collective modes is not possible in a regular single-layer two-dimensional system since they exist in nonoverlapping domains of dimensionless parameter ωτ, where ω is the external electromagnetic field frequency and τ is electron-scattering time. Thus, in a single-layer structure, these modes are mutually exclusive. However, the coupling may become possible in a hybrid system consisting of two separated in space materials with different properties, in particular, the electron-scattering time. We investigate the electromagnetic power absorption by the hybrid system and reveal the conditions necessary for the hybridization of collective modes.

AB - We study hybridization of collective plasmon and Carlson-Goldman-Artemenko-Volkov modes in a hybrid system, consisting of two-dimensional layers of electron gas in the normal state and superconductor, coupled by long-range Coulomb forces. The interaction between these collective modes is not possible in a regular single-layer two-dimensional system since they exist in nonoverlapping domains of dimensionless parameter ωτ, where ω is the external electromagnetic field frequency and τ is electron-scattering time. Thus, in a single-layer structure, these modes are mutually exclusive. However, the coupling may become possible in a hybrid system consisting of two separated in space materials with different properties, in particular, the electron-scattering time. We investigate the electromagnetic power absorption by the hybrid system and reveal the conditions necessary for the hybridization of collective modes.

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Interplay between collective modes in hybrid electron-gas-superconductor structures

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