| Autor: |
Lega, Petr, Kartsev, Alexey, Nedospasov, Ilya, Lv, Shuhui, Lv, Xiaoling, Tabachkova, Natalia, Irzhak, Artemy, Orlov, Andrey, Koledovy, Victor |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Phys. Rev. B 101, 214111 (2020) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.101.214111 |
| Popis: |
Shape memory effect associated with martensitic transformations is of the rapidly developing field in nanotechnologies, where industrial use of systems established on that effect provide greater flexibility on the nano-devices fabrication of various kind. And therefore it addresses questions to the phase transition phenomena at low-scale and its limitations and control. In this report, we studied the crystal structure of tapered plates of Ti$_2$NiCu alloy and the temperature $T_c$ at which the martensitic transition occurs. We demonstrated that $T_c$ has a strongly descending character as a function of the plate thickness $h$. The critical thickness value at which the transition completely suppressed is 20 nm. Moreover, the obtained results for $T_c(h)$ curves indicate the hysteretic nature of the transition. These findings open the pathway for size limits indication and regimes modulation where the alloy-based nano-mechanical devices can be tuned to operate more efficiently. |
| Databáze: |
arXiv |
| Externí odkaz: |
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