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|Type:||Artigo de periódico|
|Title:||Steady-state Polarization Waves In Photoexcited N-doped Semiconductors|
|Abstract:||We show that, in n-doped semiconductors under continuous laser illumination the homogeneous steady-state of carriers becomes, in the degenerate regime, unstable against the formation of spatial order at the macroscopic level. Beyond a critical distance from equilibrium this nonequilibrium phase transition occurs, corresponding to the formation of a polarization wave of electrons and holes. It is the result of the interplay of collective and nonlinear dissipative effects in the far-from-equilibrium system. © 1990.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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