Research of Magnetocaloric Effect For Ni-Mn-In-Co Heusler Alloys by the Direct Methods in Magnetic Fields Up to 14 T

This paper is devoted to the study of magnetocaloric effect (MCE) in Ni-Mn-In-Co Heusler alloys by direct methods in high magnetic fields. Ni-Mn-In-Co Heusler alloys demonstrate the inverse MCE in the magnetostructural transition area. The adiabatic temperature change value (ΔT ad ) is determined by...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2017-11, Vol.53 (11), p.1-5
Main Authors: Dilmieva, Elvina T., KoshkidKo, Yurii S., Kamantsev, Alexander P., Koledov, Victor V., Mashirov, Aleksey V., Shavrov, Vladimir G., Khovaylo, Vladimir V., Lyange, Mariya V., Cwik, J., Gonzalez-Legarreta, Lorena, Blanca Grande, Hernado
Format: Article
Language:English
Subjects:
Adiabatic flow
Curie temperature
Direct method
Heusler alloy
Heusler alloys
high magnetic field
Magnetic field measurement
Magnetic fields
Magnetic hysteresis
Magnetism
Magnetization
magnetocaloric effect (MCE)
Manganese base alloys
Metals
Nickel base alloys
Saturation magnetization
Temperature measurement
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Summary:This paper is devoted to the study of magnetocaloric effect (MCE) in Ni-Mn-In-Co Heusler alloys by direct methods in high magnetic fields. Ni-Mn-In-Co Heusler alloys demonstrate the inverse MCE in the magnetostructural transition area. The adiabatic temperature change value (ΔT ad ) is determined by direct extraction method in magnetic fields up to 10 T. It is shown that the value of ΔT ad increases with decrease in the difference between the temperature of magnetostructural transition and the Curie point temperatures of the compounds. The amount of isothermal heat emission (sorption) for Ni 43 Mn 37.8 In 12.2 Co 7 alloy is determined as a result of magnetization in magnetic field up to 10 T in the magnetostructural transition area. The obtained results are discussed from the viewpoint of magnetic and lattice subsystems influences on the total entropy change (ΔSt).
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2017.2702577