Investigation of Plasma Oscillations in Glasslike Dielectrics by Means of Total External Reflection of X Rays

Стожаров, В. М.

doi:10.1134/s1063784220070233

Cited by 1 publication

(9 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In a single crystal of a LiF dielectric, the dimensional effect is most pronounced, which is due to the large band gap E g = 14.5 eV for lithium fluoride. It is noted in [33] that a significant difference between slow electrons exciting plasmons in dielectrics and metals is a significantly greater depth of the exit zone of such slow electrons in LiF, about 80 Å, which practically coincides with the depth X = 62.3 Å of excitation of plasmons in LiF according to our data [34].…”

Section: Plasma Oscillations In Crystalline Semiconductors and Dielec...supporting

confidence: 88%

“…The dispersion curve shown in Figure 5 has a loop-like appearance. Similar dispersion relations were observed on other glassy dielectrics [34].The average energy of plasmons is calculated from the area of this loop, using the empirical relation:…”

Section: Comparative Study Of Plasmon Dispersion In Amorphous Fused Q...supporting

confidence: 57%

“…From Table 5 according to the experimental azimuthal angles β, the wave plasma vectors k ⃗ are calculated using the Equation ( 19) and dispersion curve of surface plasmons E (k ⃗ ) is constructed, shown in Figure 5. • of halos [34].…”

Section: Comparative Study Of Plasmon Dispersion In Amorphous Fused Q...mentioning

confidence: 99%

“…The dispersion ratios of plasmons excited by light were calculated mainly theoretically on the basis of the Drude theory for free electrons in metals [37][38][39]. And only in two papers [40,41], the plasmon dispersion experimentally measured by inelastic X-ray scattering in a complex substance Nd 2−x Ce x CuO 4 appears to be a simple dispersion curve with a minimum at the wave vector → k = 0, and in the experimentally measured plasmon dispersion for glassy dielectrics such as fused quartz, quartz glass, uviol glass and molybdenum glass [34], in addition to simple dispersion curves, loop-like curves were also observed.…”

Section: Dispersion Of Surface Plasmons In Solidsmentioning

confidence: 99%

“…In our works [34,42], the dispersion of plasmons is represented by the dependence of their energy, measured at different azimuthal angles β, on the wave vector. In [39], where the dispersion of surface plasmons in structures with a conductive film was studied, the plasma wavenumber was introduced:…”

Section: Dispersion Of Surface Plasmons In Solidsmentioning

confidence: 99%

See 4 more Smart Citations

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

Стожаров¹

2022

Solids

View full text Add to dashboard Cite

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.

show abstract

Section: Plasma Oscillations In Crystalline Semiconductors and Dielec...supporting

confidence: 88%

Section: Comparative Study Of Plasmon Dispersion In Amorphous Fused Q...supporting

confidence: 57%

Section: Comparative Study Of Plasmon Dispersion In Amorphous Fused Q...mentioning

confidence: 99%