Einstein–de Haas Experiment

The Einstein-de Haas effect is a physical phenomenon in which a change in the magnetic moment of a free body causes this body to rotate. The effect is a consequence of the conservation of angular momentum.

The classical Einstein-de Haas experiment demonstrates that a change of magnetization in a macroscopic magnetic object results in a mechanical rotation of this magnet. This experiment can therefore be considered as a macroscopic manifestation of the conservation of total angular momentum and energy of electronic spins.

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Einstein-de-Haas Experiment. Derivation of g-factor for spin of electron.

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The Einstein–de Haas effect, if I understand it correctly, demonstrates a deep relationship between the intrinsic angular momentum (spin) and the magnetic moment of a particle; For this reason when a

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This article contains information on Einstein's experimental work. It pays main attention to three of his studies (1915–1916) aimed at experimental demonstration of Ampere molecular currents.

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Local time-dependent theory of Einstein - de Haas effect is developed. We begin with microscopic interactions and derive dynamical equations that couple elastic deformations with internal twists due to spins. The theory is applied to the description of the motion of a magnetic cantilever caused by the oscillation of the domain wall. Theoretical results are compared with a recent experiment on Einstein - de Haas effect in a microcantilever.

A freely suspended body consisting of a ferromagnetic material acquires a rotation when its magnetization changes.

The Einstein–de Haas effect, or the Richardson effect (after Owen Willans Richardson), is a physical phenomenon delineated by Albert Einstein and Wander Johannes de Haas in the mid 1910s,

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ISES : Intelligent School Experimental System and Remote Laboratory

A gyromagnetic effect discovered by Albert Einstein and Dutch physicist Wander Johannes de Haas has been measured at micrometer-scale dimensions for the first time at the NIST.