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["Wu Rongqin" <g0203654@nus.edu.sg>]

If you get rid off the electric field parameters, I think it is solved

-----Original Message-----
From: Yongting Ma [mailto:ytma@gwu.edu] 
Sent: 2004年7月11日 23:20
To: forum@abinit.org
Subject: [abinit-forum] Response function calculation of the dynamical matrix 
at Gamma.

Dear abinitors:
In tutorial 5.4, I have known the response function calculation of the 
dynamicla matrix at Gamma,but it takes into account the  coupling between 
atomic displacement and homogeneous electric field.

Now I want to calculate the dynamical matrix at Gamma only including the 
atomic displacement, discarding the homogeneous electric field.
Can you give me some information?
Thans a lot.
Ma