Apparent screening breakdown mechanism in ultrasonic attenuation
Robinson and Levy have suggested that the mechanism of “apparent screening breakdown” may be responsible for an anomalous peak observed in the attenuation of transverse ultrasonic waves in metals. We show that this mechanism is consistent with Pippard's “real metal theory” despite a recent claim of Almond and Rayne to the contrary. Numerical calculations within a two-band model suggest that “apparent screening breakdown” effects may be important in compensated metals. This is in agreement with experimental data.
KeywordsExperimental Data Attenuation Numerical Calculation Magnetic Material Ultrasonic Wave
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