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Universal magnetoluminescence kinetics in magnetically frozen 2D electron systems

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<mark>Journal publication date</mark>25/01/1996
<mark>Journal</mark>JETP Letters
Issue number2
Volume63
Number of pages6
Pages (from-to)133-138
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

The kinetics of recombination of electrons and acceptor-bound holes in AlGaAs-GaAs heterostructure obey a single-exponential decay in the liquid phase of 2D electrons, whereas localization gives rise to a broad spectrum of recombination rates, especially in the magnetic freeze-out regime, This results in a power-law dependence I(t)(proportional to)(tau/t)(alpha) in the tail of the recombination kinetics, with the universal exponent alpha=(1 - nu)(-1) at nu<1 for all the samples examined experimentally in this work. (C) 1996 American Institute of Physics.