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Article

Changes in the Structure and Magnetic Characteristic of Nanofilms and Control of Spin Current by Short Laser Pulses

1Laboratory of Magnetic Nanostructures, Institute of Magnetism NAS of Ukraine, Kyiv, Ukraine


American Journal of Nanomaterials. 2013, Vol. 1 No. 2, 13-23
DOI: 10.12691/ajn-1-2-1
Copyright © 2013 Science and Education Publishing

Cite this paper:
Mykola M. Krupa. Changes in the Structure and Magnetic Characteristic of Nanofilms and Control of Spin Current by Short Laser Pulses. American Journal of Nanomaterials. 2013; 1(2):13-23. doi: 10.12691/ajn-1-2-1.

Correspondence to: Mykola M. Krupa, Laboratory of Magnetic Nanostructures, Institute of Magnetism NAS of Ukraine, Kyiv, Ukraine. Email: krupa@imag.kiev.ual

Abstract

The article focuses on photon drag effect under laser radiation in solid state materials. This effect causes a high concentration of nonequilibrium electrons in the area of the laser beam the exit out of material. Coulomb interaction of spatial charge of these electrons with the charged impurity atoms can cause their drift in the direction of laser radiation. The photon drag effect can be used in laser doping technology of thin films. In multilayer magnetic nanofilms the photon drag effect of polarized electrons can lead to magnetic reversal of magnetic layers, which can be used to control a high speed spin current in the elements of spintronics.

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