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Large Magnetization and Reversible Magnetocaloric Effect at the Second-Order Magnetic Transition in Heusler Materials

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Singh,  Sanjay
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Caron,  Luana
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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D'Souza,  Sunil Wilfred
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Fichtner,  Tina
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Shekhar,  Chandra
Chandra Shekhar, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Chadov,  Stanislav
Stanislav Chadov, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Felser,  Claudia
Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Singh, S., Caron, L., D'Souza, S. W., Fichtner, T., Porcari, G., Fabbrici, S., et al. (2016). Large Magnetization and Reversible Magnetocaloric Effect at the Second-Order Magnetic Transition in Heusler Materials. Advanced Materials, 28(17), 3321-3325. doi:10.1002/adma.201505571.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002A-C553-2
Abstract
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.