Galfenol is a unique alloy made from gallium and iron. It is known for its remarkable magnetostrictive properties, meaning it can change shape when exposed to a magnetic field. This makes it useful in various applications, including sensors and actuators. The material is also notable for its ability to operate effectively at room temperature, unlike some other magnetostrictive materials that require extreme conditions. Researchers are exploring its potential in fields such as robotics, energy harvesting, and advanced manufacturing, where precise movement and control are essential.