Nonstandard Absorption on Donors in Uniformly Doped II-VI 0D Structures
K. Karpierz a, M. Szot a,b and M. Grynberg a
a Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland
b Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
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Received: 9 06 2007;
The new approach to the understanding of intrashallow donor transition in the reduced dimensionality systems is presented. The magnetospectroscopy experiments done on the CdTe/CdMgTe quantum well based samples, uniformly n-doped, show indications that the surprising lack of spectral sensitivity on applied photon energy can be understood as a result of sample response coming from its different regions. This “non spectroscopic ” behaviour (in a sense of the Zeeman splitting) is a consequence of the properties of systems with reduced dimensionality where variety of centre locations in the structure results in continuous density of states available for absorption.
DOI: 10.12693/APhysPolA.112.237
PACS numbers: 71.55.Gs, 72.15.Rn, 72.80.Ey, 73.21.Fg