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  _  __    ______    ______     ___      _____   
 | |/ //  /_   _//  /_   _//   / _ \\   /  ___|| 
 | ' //    -| ||-     | ||    | / \ || | // __   
 | . \\    _| ||_    _| ||    | \_/ || | \\_\ || 
 |_|\_\\  /_____//  /__//      \___//   \____//  
 `-` --`  `-----`   `--`       `---`     `---`

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Text this: Atom diffusion during MBE growth on patterned substrate