Магнитокалорический эффект в сплаве Fe-=SUB=-49-=/SUB=-Rh-=SUB=-51-=/SUB=- в импульсных магнитных полях до 50 T | Zendy

А.П. Каманцев | Zendy; А.А. Амиров | Zendy; Ю.С. Кошкидько | Zendy; К. Салазар Мехиа | Zendy; А.В. Маширов | Zendy; А.М. Алиев | Zendy; В.В. Коледов | Zendy; В.Г. Шавров | Zendy

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Магнитокалорический эффект в сплаве Fe-=SUB=-49-=/SUB=-Rh-=SUB=-51-=/SUB=- в импульсных магнитных полях до 50 T

Author(s) -

А.П. Каманцев,

А.А. Амиров,

Ю.С. Кошкидько,

К. Салазар Мехиа,

А.В. Маширов,

А.М. Алиев,

В.В. Коледов,

В.Г. Шавров

Publication year - 2019

Publication title -

физика твердого тела

Language(s) - English

Resource type - Journals

eISSN - 1726-7498

pISSN - 0367-3294

DOI - 10.21883/ftt.2020.01.48747.492

Subject(s) - magnetic refrigeration , adiabatic process , ferromagnetism , condensed matter physics , materials science , alloy , magnetic field , absolute zero , phase (matter) , field (mathematics) , thermodynamics , chemistry , physics , magnetization , metallurgy , mathematics , organic chemistry , quantum mechanics , pure mathematics

The direct magnetocaloric effect (MCE) was measured in pulsed magnetic fields up to 50 T in the Fe49Rh51 alloy. At different initial temperatures in the metamagnetic phase transition with an increase in the field up to 20 T, a reverse MCE ∆T ≈ -8 K is observed, while a further increase in the field to 50 T results in a decrease in the absolute value of the adiabatic temperature change by ~ 1 K, which is connected with direct MCE and indicates a complete transition of the sample into the ferromagnetic phase. The maximum of the absolute value of the adiabatic temperature change |∆Т| = 9.8 K with a decrease in the magnetic field of 6 T on initial temperature of 310 K was observed.

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