A gyromagnetic effect discovered by Albert Einstein and Dutch physicist Wander Johannes de Haas - the rotation of an object caused by a change in magnetization - has been measured at micrometer-scale dimensions for the first time at the National Institute of Standards and Technology (NIST). The new method may be useful in the development and optimization of thin film materials for read heads, memories and recording media for magnetic data storage and spintronics, an emerging technology that relies on the spin of electrons instead of their charge as in conventional electronics.

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