Spectrum of piezo-electrically amplified phonon in the 20 GHz range by X-ray scattering

Ishibashi, Teruo; Kitamura, Momoyo; Odajima, Akira

doi:10.1016/0375-9601(73)90788-3

Cited by 11 publications

(1 citation statement)

References 6 publications

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“…sum and difference frequencies) is nonuniform, and is a function of resistivity and carrier drift velocity. Ishibashi et al [14] observed the amplified phonon spectrum using X-ray scattering in GaAs. Fig.…”

Section: Resultsmentioning

confidence: 99%

Acoustic Second Harmonic Generation in Magnetized High Resistivity Piezoelectric Semiconductors. Effect of Nonuniform Electric Field Intensity and Carrier Concentration

Dey

Ghosh

1990

Physica Status Solidi (b)

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The acoustic second harmonic generation in transversely magnetised nondegenerate piezoelectric semiconductors in the presence of an electrostatic field in the direction of the wave propagation is studied theoretically. Even in trap-free semiconductors the electrostatic field and the carrier concentration inside the sample are taken as nonuniform. It is found that the relative flux of second harmonic gets enhanced due to this nonuniformity; whereas application of magnetostatic field reduces it. Numerical estimations are made for n-CdS at room temperature.Die Erzeugung zweiter akustischer Harmonischer in transversal magnetisierten nichtentarteten piezoelektrischen Halbleitern in Gegenwart eines elektrischen Feldes in Richtung der Wellenausbreitung wird theoretisch untersucht. Selbst fur storstellenfreie Halbleiter werden elektrostatisches Feld und Tragerkonzentration als ungleichformig angenommen. Es wird gefunden, daD die relative Intensitat der zweiten Harmonischen infolge dieser Ungleichformigkeit erhoht, durch das magnetische Feld vermindert wird. Numerische Abschatzungen werden gemacht fur n-CdS bei Zimmertemperatur.

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Section: Resultsmentioning

confidence: 99%