أرسل هذا في رسالة قصيرة: Micromagnetic study of switching in ring-shaped spin valve structures

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