AlGaN back barrier

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<blockquote class="wp-embedded-content" data-secret="297eRXHWME"><a href="https://swegan.se/algan-back-barrier/">AlGaN back barrier</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://swegan.se/algan-back-barrier/embed/#?secret=297eRXHWME" width="600" height="400" title="&#8220;AlGaN back barrier&#8221; &#8212; SweGaN" data-secret="297eRXHWME" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript">
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