Tunable Curie temperature in Mn1.15Fe0.85P0.55Si0.45 via lattice engineering by Al addition

Sumin Kim, Hyunjun Shin, Inchang Chu, Kyungmi Lee, Kyu Hyoung Lee, Wooyoung Lee

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3 Citations (Scopus)


Bulk polycrystalline samples of hexagonal Fe2P-type Al-added Mn1.15Fe0.85P0.55Si0.45 were prepared via a solid-state reaction under controlled heat treatment, and their magnetocaloric properties, including magnetization and entropy change, were investigated. Notably, the Curie temperature, which is directly related to the operating temperature of magnetocaloric materials, could be systematically tuned through Al substitution at Si sites owing to the lattice engineering effect. We found an inverse relationship between the Curie temperature and the ratio of the c-axis lattice constant to a-axis lattice constant, which enables the design of magnetocaloric materials for high-performance magnetic cooling systems.

Original languageEnglish
Article number161798
JournalJournal of Alloys and Compounds
Publication statusPublished - 2022 Jan 15

Bibliographical note

Funding Information:
This research was supported by the Technology Innovation Program (‘ 20013621 ’, Center for Super Critical Material Industrial Technology) funded By the Ministry of Trade, Industry & Energy( MOTIE , Korea) and Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF- 2019R1A6A1A11055660 ) and Hyundai Motor Group ( 2019-11-1024 ).

Publisher Copyright:
© 2021 Elsevier B.V.

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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