Interaction Of Rayleigh Waves Research Articles

Interaction of Rayleigh waves with electrons in a CdS crystal in the presence of illumination and a transverse electric field: Akusticheskii Zhurnal, Vol 14, No 2 (1968) pp 204–209

The structural, optical, and electrical properties of Al-doped ZnO (ZnO:Al) thin films deposited by atomic layer deposition (ALD) with a modified precursor pulse sequence were investigated to evaluate the electromagnetic interference shielding effectiveness (EMI-SE). A Zn–Al–O precursor exposure sequence was used in a modified ALD procedure to result in better distribution of Al3+ ions in the ZnO matrix with the aim of reducing the formation of complete nano-laminated structures that may form in the typical alternating ZnO and Al2O3 deposition procedure. The ALD dopant concentration of the ZnO:Al films was varied by adjusting the dopant deposition intervals of the ZnO:ZnAlO precursor pulse cycle ratios among 24:1, 19:1, 14:1, and 9:1. The lowest obtained resistivity and average transmittance in the visible region (380-780 nm) were 5.876 × 10−4 Ω cm (carrier concentration of 6.02 × 1020 cm−3 and Hall mobility of 17.65 cm2/V s) and 85.93% in the 131 nm thick ZnO:Al(19:1) film, respectively. The average value of the EMI-SE in the range of 30 MHz to 1.5 GHz increased from 1.1 dB for the 121 nm thick undoped ZnO film to 6.5 dB for the 131 nm thick ZnO:Al(19:1) film.

The interaction of Rayleigh and Stoneley waves in the ocean bottom*

Abstract A theory is developed for the propagation of two-dimensional unattenuated waves in a system consisting of a liquid layer overlying an infinitely thick solid. Special attention is given to the interaction between the Stoneley type of wave and the Rayleigh wave. It is shown that the type of wave discussed corresponds to a dispersion branch for which the velocity varies continuously from a value lower than the velocity of sound in the liquid to that of the Rayleigh waves. The possible importance of this fact is pointed out in connection with the interpretation of the T phase of shallow-focus submarine earthquakes. The physical nature of these waves is illustrated by showing that they exist at the interface of a massless solid and an incompressible fluid.