[Pw_forum] Re: How to determine the thickness in surface phonons calculation?

[英利 牛]

Dear Prof Nicola Marzari,
  Sorry about the indistinct questions!
  I want to calculate the superconducting Tc of
surface or  thin film. So I need to calculate the
el-ph matrices and el-ph constants. It is necessary to
distinguish the contribution from bulk to the
contribution from surface. Am I right? Then I can
analyze why the Tc of film specimen is different from
the bulk specimen.
  As you said, I am a newcomer in the field, and have
to do lots of homework about physics and computation.
And again thank you very much for your help in
patience.

Best regards!

Yingli Niu


		
___________________________________________________________ 
雅虎免费邮箱-3.5G容量，20M附件 
http://cn.mail.yahoo.com/