论文信息 - Photoexcitation of short acoustic pulses in magnetic field

Photoexcitation of short acoustic pulses in magnetic field

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.

N. V. Chigarev

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