抄録
The present study on the [110] TA1 phonon dispersion relation in a AuCuZn2 alloy reveals that the lattice instability towards the 18R martensite is characteristic of only the Heusler phase existing stably below about 670 K, which is the disordering temperature to the B2-phase. Anomalous peak appearing near ζ=2/3 [110] in the Heuslerphase is also examined by neutron elastic scattering experiments in a wide range of temperature. It is evident that such a peak has no relation to the 2/3-dip on the [110] TA, phonon branch observed in the Heusler-phase but it is originated from vacancies existing inherently and regularly in the B2-lattice.
| 本文言語 | English |
|---|---|
| ページ（範囲） | 995-1000 |
| ページ数 | 6 |
| ジャーナル | journal of the physical society of japan |
| 巻 | 63 |
| 号 | 3 |
| DOI | |
| 出版ステータス | Published - 1994 1月 1 |
| 外部発表 | はい |
ASJC Scopus subject areas
- 物理学および天文学（全般）