Comment on the structural phase transition in A15 compounds
- 7 October 1975
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 8 (19) , L397-L399
- https://doi.org/10.1088/0022-3719/8/19/003
Abstract
The martensitic transformation in A15 compounds in the presence of internal strains and of external mechanical stress is examined on the basis of the Landau theory of phase transitions. The free energy of the model coincides with the free energies of the three-state Potts model and provides an explanation for the different martensitic transition temperatures for Nb3Sn and V3Si crystals. It is argued that in these compounds the linear chains of Nb and V atoms may be broken in the tetragonal phase. The critical behaviour is discussed.Keywords
This publication has 4 references indexed in Scilit:
- A simple theory of some phase transitionsJournal of Physics F: Metal Physics, 1974
- Some Lattice and Electronic Properties of the β-TungstensPublished by Elsevier ,1974
- Three-state Potts model and anomalous tricritical pointsJournal of Physics A: Mathematical, Nuclear and General, 1973
- Symmetry Considerations on Martensitic Transformations: "Ferroelectric" Metals?Physical Review Letters, 1965