Abstract
Shape memory effect associated with martensitic transformations is a rapidly developing field in nanotechnologies, where industrial use of systems established on that effect provide greater flexibility on the nanodevice fabrications of various kinds. 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 alloy and the temperature at which the martensitic transition occurs. We demonstrated that has a strongly descending character as a function of the plate thickness . The critical thickness value at which the transition is completely suppressed is 20 nm. Moreover, the obtained results for curves indicate the hysteretic nature of the transition. These findings open the pathway for size limit indications and regime modulations where the alloy-based nanomechanical devices can be tuned to operate more efficiently.
- Received 25 March 2020
- Revised 9 May 2020
- Accepted 5 June 2020
DOI:https://doi.org/10.1103/PhysRevB.101.214111
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