10 June 2004 Photoexcitation of short acoustic pulses in magnetic field
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New nonthermal mechanism of sound photoexcitation in semiconductors having transition into ferromagnetic phase is proposed. The efficiency of this mechanism is compared with the efficiency of electron-deformation mechanism. Simple situation of a drift with constant velocity is described. The duration of generated acoustic pulse depends on the velocity of the drift and the thickness of transition area.
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N. V. Chigarev, "Photoexcitation of short acoustic pulses in magnetic field", Proc. SPIE 5482, Laser Optics 2003: Superintense Light Fields and Ultrafast Processes, (10 June 2004); doi: 10.1117/12.558782; https://doi.org/10.1117/12.558782

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