Galfenol is a unique alloy made from iron and gallium, known for its remarkable magnetostrictive properties. This means it can change shape or size when exposed to a magnetic field, making 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.