發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Electronic reconstruction and surface two-dimensional electron gas in a polarized heterostructure with a hole-doped single copper-oxygen plane