Are the effective masses of the electrons and holes equal in anisotropic material?

01 January 2014 1 3K Report

For example PbTe

This question is in poor English and hence impossible to answer - please consider revising it so that somebody can help you.

In general, the effective masses of electrons and holes are NOT equal - in most materials, holes are heavier than electrons. Their effective masses are related to the curvature of the energy bands, and so it is the shape of the bands - and hence the nature of bonding and electronic interactions - which determines them.

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