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キーワード:
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要旨:
In contrast to rare-earth-based materials, cheaper and more
environmentally friendly candidates for cooling applications are found
within the family of Ni-Mn Heusler alloys. Initial interest in these
materials is focused on the first-order magnetostructural transitions.
However, large hysteresis makes a magnetocaloric cycle irreversible.
Alternatively, here it is shown how the Heusler family can be used to
optimize reversible second-order magnetic phase transitions for
magnetocaloric applications.
