Abstract
The mechanism of interaction of nonequilibrium phonons generated in aBi single crystal under nonlinear conductivity conditions (Esaki effect [1]) with the boundaries of twin layer is studied. The current-voltage characteristics and nonlinear response signals are investigated experimentally at 4.2K. It is found that the time of a nonstationary process occurring in the sample when the magnetic field vector is oriented nearly along the twinning plane is an order of magnitude greater than the characteristic time of stabilization of nonequilibrium phonons. The twin layer is regarded as the inner boundary in the sample, at which diffusive static skin effect is realized. Experimental results can be interpreted under assumption about the anomalously high probability of absorption of nonequilibrium phonons in the skin layer.
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