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<body class='hmmessage'><div dir='ltr'>Hello,<BR> Prof. Blaha and wien2k user,<BR> <BR>I want to calculate cubic constants of a cubic perovskite compound with method developed by charpin. I put valid case.struct and case.inst file in the directory but when I want to init_elast through terminal it prompts that you don't have valid case.struc file. Then I past this init_elast in commandline of wien2k that says xnn invalid xnn error.while I am giving correct bond length factor which is 2.<BR> please guide me in this respect.<BR> ph.d. student<BR> <BR> <BR> </div></body>
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