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  Structure, magnetism and magnetocalorics of Fe-rich (Mn,Fe)1.95P1-xSix melt-spun ribbons

Ou, Z. Q., Zhang, L., Dung, N. H., Caron, L., & Bruck, E. (2017). Structure, magnetism and magnetocalorics of Fe-rich (Mn,Fe)1.95P1-xSix melt-spun ribbons. Journal of Alloys and Compounds, 710, 446-451. doi:10.1016/j.jallcom.2017.03.266.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-5737-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-CCC3-4
Genre: Journal Article

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 Creators:
Ou, Z. Q.1, Author
Zhang, L.1, Author
Dung, N. H.1, Author
Caron, Luana2, Author              
Bruck, E.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              

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 Abstract: Single phase Mn0,66Fe1.29P1-xSix (0 <= x <= 0.42) compounds were synthesized using the melt-spinning (rapid solidification) technique. All the compounds form in the Fe2P-type hexagonal structure, except a Co2P-type orthorhombic structure of the Si-free Mn0.66Fe1.29P compound. The compounds with 0.24 <= x <= 0.42 present a FM-PM phase transition, while the compounds with lower Si content show an AFM-PM phase transition. In the Mn0.66Fe1.29P1-xSix compounds, T-c and triangle T-hys are not only Si content dependent, but also magnetic field dependent. By increasing the Si content from x = 0.24 to 0.42, Tc increases from 195 to 451 K and triangle T-hys is strongly reduced from similar to 61 to similar to 1 K. Tc increases and triangle T-hys decreases with increasing magnetic field, triangle T-c/triangle B is about 4.4 KIT. Mn0.66Fe1.29P1-xSix compounds show large saturation magnetic moments with values up to 4.57 mu B/f.u.. A large MCE with a small thermal hysteresis is obtained simultaneously in Fe-rich Mn0.66Fe1.29P1-xSix melt-spun ribbons. (C) 2017 Elsevier B.V. All rights reserved.

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Language(s): eng - English
 Dates: 2017-03-232017-03-23
 Publication Status: Published in print
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Title: Journal of Alloys and Compounds
  Abbreviation : J. Alloy. Comp.
Source Genre: Journal
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Publ. Info: Lausanne, Switzerland : Elsevier B.V.
Pages: - Volume / Issue: 710 Sequence Number: - Start / End Page: 446 - 451 Identifier: ISSN: 0925-8388
CoNE: https://pure.mpg.de/cone/journals/resource/954925567746