Автор |
E V Savushkin |
Автор |
V B Lapin |
Автор |
V E Egorushkin |
Дата выпуска |
1991-11-18 |
dc.description |
The multi-atom per unit cell average t-matrix approximation is used to study evolution of the Ti(Ni<sub>1-x</sub>Fe<sub>x</sub>) and Ti(Ni<sub>1-x</sub>Pd<sub>x</sub>) Fermi surfaces, as the concentration x is increased. The possible relation of the Fermi surface peculiarities with the B-R martensitic transformation in these alloys is discussed. It is theoretically shown that the appearance of the charge-density wave with wavevector Q<sub>1</sub>=2/3 pi (1, 1, 1) in the presence of a rhombic distortion can be caused by softening of the phonon mode with wavevector Q<sub>2</sub>=2/3 pi (1, 1, 0). On this basis a new microscopic mechanism for the R-phase formation in TiNi is proposed. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
On a possible mechanism for R-phase formation in TiNi |
Тип |
paper |
DOI |
10.1088/0953-8984/3/46/019 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
3 |
Первая страница |
9185 |
Последняя страница |
9194 |
Аффилиация |
E V Savushkin; Dept. of Appl. Phys., Inst. for Metal Phys., Acad. of Sci., Sumy, Ukrainian SSR, USSR |
Аффилиация |
V B Lapin; Dept. of Appl. Phys., Inst. for Metal Phys., Acad. of Sci., Sumy, Ukrainian SSR, USSR |
Аффилиация |
V E Egorushkin; Dept. of Appl. Phys., Inst. for Metal Phys., Acad. of Sci., Sumy, Ukrainian SSR, USSR |
Выпуск |
46 |