Determination of Plasma Oscillations in Metals Using Total External Reflection of X-Rays

Стожаров, В. М.

doi:10.1134/s1063784219070235

Cited by 3 publications

(3 citation statements)

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“…In [29] X-ray radiation CuK α1 with a wavelength λ = 1.5406 Å was used, which corresponds to the angular frequency ω = 2πc/λ ~10 19 s −1 and taking into account the above estimate of the magnitude τ, the product of ωτ in Equation ( 10) is of the order of 10 5 1. Therefore, the unit in the denominator of Equation ( 11) can be neglected.…”

Section: Theoretical Concepts Of Plasma Oscillations In Metalsmentioning

confidence: 99%

“…Since in our work [29] surface plasmons in solids are excited by X-rays that have experienced TER, then in Equation ( 13) for the density of conduction electrons N, the right part must be multiplied by sin α, where angle α is the angle of slip of the beam of X-rays that have experienced TER X-rays.…”

Section: Theoretical Concepts Of Plasma Oscillations In Metalsmentioning

confidence: 99%

“…When studying the dispersion of plasmons, it is necessary to measure the energy of plasma oscillations excited by slow electrons with the most probable energy of 2-5 eV [14] using the TER of the X-ray method at sliding angles of incidence of the X-ray beam. In this case, the thickness of the surface layer where plasma oscillations occur can correspond to the exit zone of slow truly secondary electrons (TSE) X.…”

Section: Theoretical Calculations Of Vanadium Dioxidementioning

confidence: 99%

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Surface Plasmons Excited by X-rays in the Surface Layers of Solids

Стожаров¹

2022

Solids

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The phenomenon of total external reflection of X-rays at a sliding angle of incidence of a beam of incident X-rays is investigated. For metals, a quantitative law of direct dependence of the refractive index decrement on the interplane distance is obtained. The excitation of surface plasmons by X-rays that have experienced complete external reflection is detected. For surface plasmons, a dimensional effect was observed, expressed in an increase in the energy of plasmons and the concentration of conduction electrons with an increase in the depth of the output of surface plasmons. By the method of dispersion of surface plasmons, internal mechanical micro-stresses and spontaneous polarization of the surface layers of glassy dielectrics and in thin layers of vanadium dioxide were determined. The absence of micro-stresses in the lithium fluoride ionic single crystal was found out, and the polarization observed in it is due to the large dipole moment of the molecules of this crystal. In thin films of vanadium dioxide, the dependence of micro-stresses on the stresses in the substrates was found.

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Section: Theoretical Concepts Of Plasma Oscillations In Metalsmentioning

confidence: 99%

Section: Theoretical Concepts Of Plasma Oscillations In Metalsmentioning

confidence: 99%

Section: Theoretical Calculations Of Vanadium Dioxidementioning

confidence: 99%

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