1996/06/19 by D. Olguin, Olguin, D., R. Baquero +1
Engineering · Physics and Astronomy · #Advanced Semiconductor Detectors and Materials #Chalcogenide Semiconductor Thin Films #Condensed Matter (cond-mat) #FOS: Physical sciences #Semiconductor Quantum Structures and Devices #cond-mat
paper · pdf · doi:10.48550/arxiv.cond-mat/9606141
26 pages in RevTex, four PostScript figures. also available at http://www.fis.cinvestav.mx/~daniel/PUBS/pub5.ps or request to [email protected]
arxiv created 1996/06/19 · openalex publication_date 1996/06/19 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
In this work we present the electronic band structure for (001)--CdTe interfaces with some other II--VI zinc blende semiconductors. We assume ideal interfaces. We use tight binding Hamiltonians with an orthogonal basis (s p3 s^*). We make use of the well--known Surface Green's Function Matching method to calculate the interface band structure. In our calculation the dominion of the interface is constituted by four atomic layers. We consider here anion--anion interfaces only. We have included the non common either anion or cation (CdTe/ZnSe), common cation (CdTe/CdSe), and common anion (CdTe/ZnTe) cases. We have aligned the top of the the valence band at the whole interface dominion as the boundary condition. The overall conclusion is that the interface is a very rich space where changes in the band structure with respect to the bulk do occur. This is true not only at interfaces with no common atoms but also at the ones with either common cation or anion atoms irrespective to the fact that the common atomic layers are facing or not each other at the interface. Finally, we found that the (001)--surface--induced bulks states reappear at the interface in contrast to the pure (001)--surface resonances which disappear. This confirm our previous interpretation of such states as \it bulk states. Their behaviour is very interesting at the interface. We have refine the terminology for these states to up--date it to the new results and have call them \it Frontier induced semi--infinite medium (FISIM) states. They might well appear also in quantum wells and superlattices and have influence in the transport properties of these systems.