| Issue |
J. Phys. Colloques
Volume 43, Number C4, Décembre 1982
ICOMAT-82International Conference on Martensitic Transformations |
|
|---|---|---|
| Page(s) | C4-35 - C4-55 | |
| DOI | https://doi.org/10.1051/jphyscol:1982403 | |
ICOMAT-82
International Conference on Martensitic Transformations
J. Phys. Colloques 43 (1982) C4-35-C4-55
DOI: 10.1051/jphyscol:1982403
1 Konan University, Kobe, Japan
2 Nara Women's University, Nara, Japan
3 Kyoto University, Kyoto, Japan
International Conference on Martensitic Transformations
J. Phys. Colloques 43 (1982) C4-35-C4-55
DOI: 10.1051/jphyscol:1982403
LATTICE STABILITY AND SOFT MODES
N. Nakanishi1, A. Nagasawa2 et Y. Murakami31 Konan University, Kobe, Japan
2 Nara Women's University, Nara, Japan
3 Kyoto University, Kyoto, Japan
Abstract
Relationships between displacive phase transitions and soft modes are discussed and illustrated using experimental examples. Ferroelectric and ferroelastic transitions are dealed with together with the "band-Jahn-Teller" and antiferromagnetic transitions which are closely connected with acoustic soft modes. Since an acoustic mode softening has been observed in the vicinity of the martensitic transformation temperatures in ß-phase alloys, it is of importance to discuss the close relation between the nucleation mechanism of martensite and the crystal anharmonicity near the Ms temperature.