[Pw_forum] the problem about eigndisplacement of phonon?

针叶 朱 coldwind1978 at yahoo.com.cn
Tue Jun 6 16:32:45 CEST 2006

Dear stefano:
  Thank you very much. i still am confused with the equations you give. i have three questions:
  (1) \Phi U = M \omega^2 U
   in this equation, what is the meaning of \Phi ?
  (2) in fact,  what is printed in the matdyn is eigndisplacement. when i want eignvector, is M selected to be 207.2 amu. how to renormalize the eignvector?
  please give me suggestions!

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