發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Scattering of excitons by free carriers in narrow and wide quantum wells in the presence of a transverse electric field