Determination of the valence-band offset at a HgTe/CdTe heterojunction by intervalence subband spectroscopy

Yang, Z.; Furdyna, J. K.
February 1988
Applied Physics Letters;2/8/1988, Vol. 52 Issue 6, p498
Academic Journal
The relation between the value of the valence-band offset Vp at a HgTe/CdTe heterojunction and the energy difference ΔE between the first heavy hole subband and the first light hole subband at the Brillouin zone center of a HgTe/CdTe superlattice is examined theoretically. The theoretical values of ΔE are compared with those obtained from far-infrared magneto-optical measurements for two HgTe/CdTe superlattices. A single value of Vp =63±5 meV is found which fits the experimental values of ΔE for both superlattices.


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