The Einstein de Haas effect is a phenomenon in which the magnetization of a material changes when the material is subjected to a mechanical rotation.
The Einstein de Haas effect was discovered by Albert Einstein and Wander Johannes de Haas in 1915.
The Einstein de Haas effect is based on the principle of conservation of angular momentum, which states that the total angular momentum of a system remains constant unless acted upon by an external torque.
The Einstein de Haas effect can be measured by observing the change in magnetization of a material before and after it is subjected to a mechanical rotation. This change in magnetization can be detected using a magnetometer.
The Einstein de Haas effect has been used in various applications, such as studying the properties of magnetic materials, testing the validity of the conservation of angular momentum, and in the development of spintronic devices.