Spin-dependent current and magnetization reversal in Tb{sub 22}Co{sub 5}Fe{sub 73}/Pr{sub 6}O{sub 11}/Tb{sub 19}Co{sub 5}Fe{sub 76} nanofilms in laser radiation field
- National Academy of Sciences of Ukraine, Institute of Magnetism (Ukraine), E-mail: krupa@imag.kiev.ua
The results of investigation of magnetization reversal dynamics of ferrimagnetic amorphous nanolayers with transverse anisotropy is investigated for Al{sub 2}O{sub 3}/Tb{sub 22}Co{sub 5}Fe{sub 73}/Al{sub 2}O{sub 3} and Al{sub 2}O{sub 3}/Tb{sub 22}Co{sub 5}Fe{sub 73}/Pr{sub 6}O{sub 11}/Tb{sub 19}Co{sub 5}Fe{sub 76}/Al{sub 2}O{sub 3} multilayer films irradiated by laser pulses, as well as the effect of such irradiation on the resistance in a Tb{sub 22}Co{sub 5}Fe{sub 73}/Pr{sub 6}O{sub 11}/Tb{sub 19}Co{sub 5}Fe{sub 76} tunnel microcontact. It is shown that magnetization reversal in magnetic nanolayers in the laser radiation field may occur not only because of heating and the action of the external magnetic field, but also under the action of the magnetic field induced by circularly polarized laser radiation, as well as owing to transfer of magnetic moments by polarized electrons. Laser radiation can be used to control (by changing the resistance by a factor of 1.5-2.0) the conductivity of the Tb{sub 22}Co{sub 5}Fe{sub 73}/Pr{sub 6}O{sub 11}/Tb{sub 19}Co{sub 5}Fe{sub 76} tunnel microresistor.
- OSTI ID:
- 21246890
- Journal Information:
- Journal of Experimental and Theoretical Physics, Vol. 108, Issue 5; Other Information: DOI: 10.1134/S1063776109050148; Copyright (c) 2009 Pleiades Publishing, Ltd; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
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