Dear all: ?????? Following the example 06, alas444.fc has been got. Would somebody give me some explaination about this file? And customarily, the IFC matrix is [ K11? K12? K13?... K1N ] [ K21? K22? K23 ... K2N ] [ ....???????????????????????...?? ] [ KN1? KN2? KN3 ...KNN] How to transform this?IFC in?this file to the?above form? Best wishes, lijin
- [Pw_forum] How to get the interatomic force constant tensor? jin li
