Electron energy band structure of a <a href="https://en.wikipedia.org/wiki/High_Electron_Mobility_Transistor" class="extiw" title="en:High Electron Mobility Transistor">High Electron Mobility Transistor</a> (HEMT) as cross section under the gate electrode
<ul><li><a href="//commons.wikimedia.org/wiki/File:High_Electron_MobilityTransistor_-_electron_energy_band_structure_(DE).svg" title="File:High Electron MobilityTransistor - electron energy band structure (DE).svg">High_Electron_MobilityTransistor_-_electron_energy_band_structure_(DE).svg</a>: <a href="//commons.wikimedia.org/wiki/User:Cepheiden" title="User:Cepheiden">Cepheiden</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Sfu" title="User:Sfu">sfu</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Sfu" title="User talk:Sfu"><span class="signature-talk">talk</span></a>)</li></ul>
<ul><li><a href="//commons.wikimedia.org/wiki/File:High_Electron_MobilityTransistor_-_electron_energy_band_structure_(DE).svg" title="File:High Electron MobilityTransistor - electron energy band structure (DE).svg">High_Electron_MobilityTransistor_-_electron_energy_band_structure_(DE).svg</a></li></ul>