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  _____     _____    ______     _____             
 /  ___||  |  ___|| |      \\  |  ___||     ___   
| // __    | ||__   |  --  //  | ||__      /   || 
| \\_\ ||  | ||__   |  --  \\  | ||__     | [] || 
 \____//   |_____|| |______//  |_____||    \__ || 
  `---`    `-----`  `------`   `-----`      -|_|| 
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Text this: Insights into the origins of guided microtrenches and microholes/rings from Sn segregation in germanium–tin epilayers