Thanks for reply but i m now sure that it is a third order birch-murnaghan equation. it needs correction
it is also given in this paper Achieves of material science and emerging. vol 45, 2010, 108-113. Karandeep Research Scholar Physics Department, IIT, Delhi -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.democritos.it/pipermail/pw_forum/attachments/20120829/49572534/attachment.htm
