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Far Infrared Magnetoabsorption in Hg1-xMnxTe/HgTe Superlattice

Published online by Cambridge University Press:  26 February 2011

Z. Yang ,
M. Dobrowolska ,
H. Luo ,
J. K. Furdyna ,
K. A. Harris ,
J. W. Cook Jr  and
J. F. Schetzina
Z. Yang
Affiliation:
Department of Physics, Purdue University West Lafayette, IN. 47907
M. Dobrowolska
Affiliation:
Department of Physics, Purdue University West Lafayette, IN. 47907
H. Luo
Affiliation:
Department of Physics, Purdue University West Lafayette, IN. 47907
J. K. Furdyna
Affiliation:
Department of Physics, Purdue University West Lafayette, IN. 47907
K. A. Harris
Affiliation:
Department of Physics, North Carolina State University Raleigh, NC. 27695
J. W. Cook Jr
Affiliation:
Department of Physics, North Carolina State University Raleigh, NC. 27695
J. F. Schetzina
Affiliation:
Department of Physics, North Carolina State University Raleigh, NC. 27695
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Extract

Hg-based superlattices (SL)-e.g., the HgTe/CdTe SL–exhibit interesting and important physical properties. Among these are the tunability of the band gap, achieved by varying the thicknesses of the two constituent materials; and the existence of the vajeqnce band offset, on which the details of the valence bands of the SL largely depen. Recently a new type of Hg-based SL, the Hg1-xMnxTe/HgTe SL, has been successfully prepared. In addition to the ability of varying its band gap by controlling the Mn content, this SL has the advantage that some of its important parameters, including the band offset, can be tuned by an external magnetic field because of the spin-spin exchange interaction in the Hg1-xMnxTe layers. So far, the electronic and optical properties of this type of SL have not been explored.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 89: Symposium Q – Diluted Magnetic (Semimagnetic) Semiconductors , 1986 , 261
Copyright
Copyright © Materials Research Society 1987

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References

1) Schulman, J. N. and McGill, T. C., Appl. Phys. Lett. 34, 663 (1978)CrossRefGoogle Scholar
2) Berroir, J. M., Guldner, Y., Vieren, J. P., Voos, M., J. P. Faurie Phys. Rev. B34, 891 (1986)Google Scholar
3) Kowalczyk, S. P., Cheung, J. T., Kraut, E. A. and Grant, R. W. Phys. Rev. Lett. 56, 1605 (1986)Google Scholar
4) Otsuka, N., private communicationGoogle Scholar
5) Our own FIR experiments on HgTe/CdTe superlattices have shown no absorption lines in the Voigt geometry, and so far we have not seen any reports claimimg that such absorption lines have been observed.Google Scholar