Magnetocaloric Effect in Alloy Fe49Rh51 in Pulsed Magnetic Fields up to 50 T

Magnetocaloric effect (MCE) in pulsed magnetic fields up to 50 T was directly studied in alloy Fe 49 Rh 51 . An inverse MCE Δ T ≈ –8 K is observed at different initial temperatures around the metamagnetic phase transition upon field rising to 20 T; further growth of the field to 50 T leads to a decr...

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Bibliographic Details
Published in:Physics of the solid state 2020, Vol.62 (1), p.160-163
Main Authors: Kamantsev, A. P., Amirov, A. A., Koshkid’ko, Yu. S., Mejía, C. Salazar, Mashirov, A. V., Aliev, A. M., Koledov, V. V., Shavrov, V. G.
Format: Article
Language:English
Subjects:
Adiabatic flow
Ferromagnetic phases
Ferromagnetism
Magnetic fields
Magnetism
Phase transitions
Physics
Physics and Astronomy
Solid State Physics
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Summary:Magnetocaloric effect (MCE) in pulsed magnetic fields up to 50 T was directly studied in alloy Fe 49 Rh 51 . An inverse MCE Δ T ≈ –8 K is observed at different initial temperatures around the metamagnetic phase transition upon field rising to 20 T; further growth of the field to 50 T leads to a decrease in the absolute adiabatic temperature change by nearly 1 K, which is due to the direct MCE and proves that the whole sample undergoes a transition into the ferromagnetic phase. Upon the field decrease, the maximal absolute value of the adiabatic temperature change of |Δ T | = 9.8 K was revealed at 6 T when the initial temperature is 310 K.
ISSN:1063-7834
1090-6460
DOI:10.1134/S1063783420010151