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Physical Review B
Piezoelectric powders excited by two or more rf pulses are found to exhibit echoes characteristic of anharmonic oscillators. At high rf powers, the echoes show complex dependence upon the pulse separation, power, and widths. © 1976 The American Physical Society.
K. Fossheim, K. Kajimura, et al.
Physical Review B
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Materials Chemistry and Physics
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Applied Physics Letters
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Physical Review Letters