Falko, Vladimir (1994) Recombination kinetics of acceptor-bound holes in heterostructures: A probe of the local configuration of magnetically frozen electron insulators. Physical Review B, 49 (3). pp. 2242-2245. ISSN 0163-1829Full text not available from this repository.
We show that the kinetics of recombination of holes bound at accepters from a delta-doped monolayer in a heterostructure with magnetically frozen two-dimensional (2D) electrons evolves according to the power law I(t) proportional to t(-1). This behavior is universal for any kind of 2D electron insulator (ordered or disordered) in the ultra-quantum-limit and follows over a wide time range after the photoexcitation pulse. The difference between ordered and random insulating phases shows up at the longest time delays: The ordering of electrons into a Wigner lattice yields an asymptotical single lifetime decay tail, with a recombination rate whose temperature dependence is described by the characteristic Debye-Waller-type factor.
|Journal or Publication Title:||Physical Review B|
|Subjects:||Q Science > QC Physics|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited On:||01 Oct 2012 11:30|
|Last Modified:||09 Apr 2014 23:58|
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