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The inverse Faraday effect is the effect opposite to the Faraday effect. A static magnetization $vec\{M\}(0)$ is induced by an external oscillating electrical field with the frequency $omega$, which can be achieved with a high intensity laser pulse for example. The induced magnetization is proportional to the vector product of $vec\{E\}$ and $vec\{E\}^*$:## References

$vec\{M\}(0)propto[vec\{E\}(omega)timesvec\{E\}^*(omega)]$

From this equation we see that the circularly polarized light with the frequency $omega$ should induce a magnetization along the wave vector $vec\{k\}$. Because $vec\{E\}$ is in the vector product, left- and right-handed polarization waves should induce magnetization of opposite signs.

The induced magnetization is comparable to the saturated magnetization of the media.

- R. Hertel, Microscopic theory of the inverse Faraday effect, http://arxiv.org/abs/cond-mat/0509060 (2005)
- A. V. Kimel, A. Kirilyuk, P. A. Usachev, R. V. Pisarev, A. M. Balbashov and Th. Rasing, Ultrafast non-thermal control of magnetization by instantaneous photomagnetic pulses, Nature 435, 655-657 (2005)

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Last updated on Thursday February 07, 2008 at 22:17:30 PST (GMT -0800)

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This article is licensed under the GNU Free Documentation License.

Last updated on Thursday February 07, 2008 at 22:17:30 PST (GMT -0800)

View this article at Wikipedia.org - Edit this article at Wikipedia.org - Donate to the Wikimedia Foundation

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