Hydrostatic pressure-induced modifications of structural transitions lead to large enhancements of magnetocaloric effects in MnNiSi-based systems | Zendy

Tapas Samanta | Zendy; Daniel L. Lepkowski | Zendy; Ahmad Us Saleheen | Zendy; Alok Shankar | Zendy; Joseph Prestigiacomo | Zendy; Igor Dubenko | Zendy; Abdiel Quetz | Zendy; Iain W. H. Oswald | Zendy; Gregory T. McCandless | Zendy; Julia Y. Chan | Zendy; P. W. Adams | Zendy; David P. Young | Zendy; Naushad Ali | Zendy; Shane Stadler | Zendy

Open Access

Hydrostatic pressure-induced modifications of structural transitions lead to large enhancements of magnetocaloric effects in MnNiSi-based systems

Author(s) -

Tapas Samanta,

Daniel L. Lepkowski,

Ahmad Us Saleheen,

Alok Shankar,

Joseph Prestigiacomo,

Igor Dubenko,

Abdiel Quetz,

Iain W. H. Oswald,

Gregory T. McCandless,

Julia Y. Chan,

P. W. Adams,

David P. Young,

Naushad Ali,

Shane Stadler

Publication year - 2015

Publication title -

physical review b

Language(s) - English

Resource type - Journals

eISSN - 1538-4489

pISSN - 1098-0121

DOI - 10.1103/physrevb.91.020401

Subject(s) - magnetic refrigeration , materials science , paramagnetism , ferromagnetism , hydrostatic pressure , condensed matter physics , work (physics) , hydrostatic equilibrium , volume (thermodynamics) , thermodynamics , refrigeration , lead (geology) , magnetic field , magnetization , physics , quantum mechanics , geomorphology , geology

By means of alloying appropriate amounts of MnNiSi and MnFeGe, materials are found that undergo a paramagnetic to ferromagnetic transition close to room temperature, accompanied by a huge volume change. Thanks to this volume change, application of moderate pressures leads to a remarkable enhancement of the magnetocaloric response. Work like this may open new opportunities in the development of new solid-state magnetic refrigeration devices.

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