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Anonymous

compare a tight binding calculation to the analytical expansion methodin this tool

The tool solves the analytical expansions through transfer matrices to compute transmission coefficients. The RTD tool for example solves the similar problem in a single effective mass approach. It would be great if one could switch easily between these two methods and compare the resulting bands.

The improved version should have: 1) a switch that allows selection of the 2 methods 2) an option to enter different effective masses for wells and barriers (in the tight binding approach) 3) an option to enter a lattice constant – only the tight binding approach depends on its numerics on this, the other approach only in the plotting of the bands.

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    Samarth Agarwal

    A comparison with Tight binding has been implemented and should be visible from version 1.1.4 of the tool.

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1 Responses

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    Benjamin P Haley

    Hi, The pcpbt developers have taken your list of suggestions as a guide, and they are working on a new version implementing these improvements. Please keep an eye on this answer space for an update when the new version is released.

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