Magnetostriktive Erzeugung transversaler Phononen im 10 GHz-Bereich unter Vermeidung eines äußeren Magnetfeldes.

To generate transverse microwave phonons in nonpiezoelectric crystals one has to use ferromagnetic filmtransducers. This method needs a static magnetic field of some kOe. It is shown in this paper that it is possible to shift the resonance field to lower values by applying mechanical stress to the ferromagnetic film. Due to the broad linewidth even at zero field transverse phonons are generated. The measured conversion factor for generation and detection is −50 dB each which is comparable with values by other methods. The conversion factor depends strongly on the conditions during evaporation of the film. [ABSTRACT FROM AUTHOR]