Abstract
In their seminal paper on superlattices, Esaki and Tsu indicated that superlattices involving II-VI compounds and their alloys, could be of interest along with superlattices involving Group IV and III-V semiconductors. Independently, Schulman and McGill identified the Hg-Te-CdTe superlattice as an interesting case to study. HgTe and CdTe have the same crystal structure and lattice constrant to 0.3%. CdTe is a conventional zinc blende semiconductor with a band gap of about 1.6 eV; HgTe is a zero band gap semiconductor. Hence, HgTe-CdTe superlattices are expected to span a wide range of properties.
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