Question

Why is bismuth a semimetal explain from band structure?

Answer 1

Answer:

Topological Insulator

Pure bismuth is a semimetal, containing a small band gap, which leads to it having a relatively high conductivity (7.7*105 S/m at 20 °C). When the bismuth is doped with antimony, the conduction band decreases in energy and the valence band increases in energy.

Answer 2

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