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Decomposition in Ni-Co-Mn-In functional Heusler alloys and its effect on shell-ferromagnetic and magnetocaloric effects

M. Saşmaz, F. Dreist

2020enheusleralloysferromagnetismmagnetocaloricdecomposition

Abstract

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Ni-Co-Mn-In Heusler-based compounds are notable for their magnetocaloric properties, which have prompted extensive investigation. This study focuses on the decomposition of these materials and the implications of different cobalt compositions on their ferromagnetic and magnetocaloric effects. Our objective is twofold: firstly, we analyze the shell-ferromagnetic properties where Co compositions exceeding 5 at% lead to a loss of single-phase characteristics, and secondly, we examine how this multiphase nature and shell-ferromagnetic precipitation significantly influence magnetocaloric properties. Through a detailed investigation, we demonstrate that introducing Co into the precipitate can enhance ferromagnetic exchange. The implications of these findings suggest that both the presence of multiple phases and the nature of shell-ferromagnetism are crucial for understanding the functional capabilities of Ni-Co-Mn-In alloys. Results indicate that these factors should be carefully considered in the design and application of materials intended for use in magnetocaloric refrigeration technologies.

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Cite This Work

@article{fba30e66-5a13-496e-8ec8-051d50777424,
  title={Decomposition in Ni-Co-Mn-In functional Heusler alloys and its effect on shell-ferromagnetic and magnetocaloric effects},
  author={M. Saşmaz and F. Dreist},
  year={2020},
  language={en}
}
TY  - JOUR
TI  - Decomposition in Ni-Co-Mn-In functional Heusler alloys and its effect on shell-ferromagnetic and magnetocaloric effects
AU  - M. Saşmaz
AU  - F. Dreist
PY  - 2020
LA  - en
ER  -

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