[Wien] [SPAM?] about charged cell

[yxl at email.jlu.edu.cn]

Dear users,

    I have a question about charged cell. In order to calculate the charged cell we should add the background charge, but there are important electrostatic (Madelung) corrections. My question is which order the errors is corrected up to(L e-3 or L e-5?). 

    yours sincerely,

  hongxia