Photoemission from periodic structure of graded superlattices under magnetic field

Kamakhya Prasad Ghatak

doi:10.1117/12.56626

1 January 1992 Photoemission from periodic structure of graded superlattices under magnetic field

Kamakhya Prasad Ghatak

Proceedings Volume 1594, Process Module Metrology, Control and Clustering; (1992) https://doi.org/10.1117/12.56626
Event: Microelectronic Processing Integration, 1991, San Jose, CA, United States

Abstract

In this paper, an attempt is made to investigate the photoemission from III-V, II-VI, pbTe/SnTe, strained layer and HgTe/CdTe superlattices with graded structures under magnetic field and compare the same with the bulk specimens of the constituent materials by formulating the respective magnetic-dispersion relations. It is found, that the photoemission exhibits oscillatory dependence with inverse quantizing magnetic field and the electron concentration respectively in all the cases. The oscillations in HgTe/CdTe superlattices show up much more significantly as compared to other systems even in the presence of broadening. In addition, the well-known expressions for the bulk specimens of non-degenerate parabolic materials have also been derived as special cases from our generalized expressions.

Citation Download Citation

Kamakhya Prasad Ghatak "Photoemission from periodic structure of graded superlattices under magnetic field", Proc. SPIE 1594, Process Module Metrology, Control and Clustering, (1 January 1992); https://doi.org/10.1117/12.56626

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