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Report No.

Large reversible magnetocaloric effect in ferromagnetic semiconductor EuS

Li, D. X.*; Yamamura, Tomoo*; Nimori, Shigeki*; Homma, Yoshiya*; Honda, Fuminori*; Haga, Yoshinori; Aoki, Dai*

We present the large reversible magneto caloric effect of the ferromagnetic semiconductor EuS which shows a maximum magnetic entropy change of 37 J/K kg at 10.4 K, an adiabatic temperature change of 10.4 K and a relative cooling power of 782 J/kg at 18.5 K for a magnetic field change of 5 T. The present results indicate that EuS has excellent refrigeration performance at the temperatures near 20 K, and thus can be considered as the potential magnetic refrigerant material for liquefaction of hydrogen.



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Category:Physics, Condensed Matter



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