發送短信 : Spin-Peierls transition in 2D Heisenberg model with bond phonons.

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