期刊
PHYSICAL REVIEW LETTERS
卷 106, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.066602
关键词
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资金
- U.K. Engineering and Physical Sciences Research Council [EP/G035202/1]
- Royal Society International Joint Projects scheme
- EPSRC [EP/G035202/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G035202/1] Funding Source: researchfish
Picosecond acoustic pulses generated by femtosecond laser excitation of a metal film induce a transient current with subnanosecond rise time in a GaAs/Au Schottky diode. The signal consists of components due to the strain pulse crossing the edge of the depletion layer in the GaAs and also the GaAs/Au interface. A theoretical model is presented for the former and is shown to be in very good agreement with the experiment.
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