Giant room-temperature magnetoresistance in the FeRh alloy

The magnetoresistance of the FeRh alloy has been measured in the temperature range 200–300 K using high pulsed magnetic fields up to 36 T. This compound shows a first-order magnetic transition from the antiferromagnetic (AF) low-temperature state to the ferromagnetic (F) high-temperature state at TA...

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Bibliographic Details
Published in:Applied physics letters 1995-05, Vol.66 (22), p.3061-3063
Main Authors: Algarabel, P. A., Ibarra, M. R., Marquina, C., del Moral, A., Galibert, J., Iqbal, M., Askenazy, S.
Format: Article
Language:English
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Summary:The magnetoresistance of the FeRh alloy has been measured in the temperature range 200–300 K using high pulsed magnetic fields up to 36 T. This compound shows a first-order magnetic transition from the antiferromagnetic (AF) low-temperature state to the ferromagnetic (F) high-temperature state at TAF–F=405 K. The F state is very close in energy to the AF state and can be reached by applying a magnetic field. The measurements made within the AF state show that the AF–F transition is accompanied by a giant magnetoresistance effect (ΔR/R≊50%).
ISSN:0003-6951
1077-3118
DOI:10.1063/1.114278