Effect of spin polarized current on magnetic phase transition of ordered FeRh wires

We report on spin polarized current injection from Co wires into a B2-ordered FeRh wire, which shows the magnetic phase transition from the antiferromagnetic (AF) state to the ferromagnetic state at 370 K. Current-voltage characteristics of a Co/FeRh wires junction sample show a marked feature in th...

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Bibliographic Details
Published in:Journal of applied physics 2011-04, Vol.109 (7), p.07C911-07C911-3
Main Authors: Naito, T., Suzuki, I., Itoh, M., Taniyama, T.
Format: Article
Language:English
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Summary:We report on spin polarized current injection from Co wires into a B2-ordered FeRh wire, which shows the magnetic phase transition from the antiferromagnetic (AF) state to the ferromagnetic state at 370 K. Current-voltage characteristics of a Co/FeRh wires junction sample show a marked feature in the AF state below 380 K, while the feature disappears above 380 K, indicating that the noticeable feature is associated with the antiferromanetic-ferromagnetic phase transition induced by the spin polarized current injection into the FeRh wire. We attribute the spin polarized current induced phase transition to a possible modulation of the s-d exchange interaction arising from the spin polarization of itinerant electrons and Rh atoms in the FeRh wire.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.3553941