 ##  [Kronig-Penney Model](/kronig-penney-model-1) 

  ##  [Kronig-Penney Model](https://engineering.quantumdictionary.io/kronig-penney-model-2) 

  
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**Engineering &amp; Applied Technologies Dictionary**

 
Definition

A one‑dimensional, exactly solvable quantum model consisting of a periodic array of rectangular (or delta-like) potential barriers or wells used as a pedagogical example to demonstrate how a periodic potential produces allowed energy bands and forbidden gaps through matching conditions on wavefunctions.