Shape Memory Alloys (SMAs) are unique materials that have the ability to return to a predefined shape when subjected to thermal, mechanical, or magnetic stimuli. These materials are primarily composed of alloys like nickel-titanium (NiTi), copper-zinc-aluminum (CuZnAl), and copper-aluminum-nickel (CuAlNi). In the context of nanotechnology, SMAs exhibit fascinating properties that make them suitable for a myriad of applications at the nanoscale.
