The energetics of magnetovolume and magnetodistortive fluctuations of order
ed Fe,Pt is examined using the LMTO-ASA method. It is shown that in the vic
inity of low-volume nonmagnetic metastable state, distortive modes occur in
the thermal range. We also discuss the Bain deformation path from the FCC
to the BCC structure. (C) 1999 Elsevier Science B.V. All rights reserved.