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Title: Ferromagnetism of Fe3Sn and alloys

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep07024· OSTI ID:1185566

Hexagonal Fe3Sn has many of the desirable properties for a new permanent magnet phase with a Curie temperature of 725 K, a saturation moment of 1.18 MA/m. and anisotropy energy, K1 of 1.8 MJ/m3. However, contrary to earlier experimental reports, we found both experimentally and theoretically that the easy magnetic axis lies in the hexagonal plane, which is undesirable for a permanent magnet material. One possibility for changing the easy axis direction is through alloying. We used first principles calculations to investigate the effect of elemental substitutions. The calculations showed that substitution on the Sn site has the potential to switch the easy axis direction. Transition metal substitutions with Co or Mn do not have this effect. We attempted synthesis of a number of these alloys and found results in accord with the theoretical predictions for those that were formed. However, the alloys that could be readily made all showed an in-plane easy axis. The electronic structure of Fe3Sn is reported, as are some are magnetic and structural properties for the Fe3Sn2, and Fe5Sn3 compounds, which could be prepared as mm-sized single crystals.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1185566
Journal Information:
Scientific Reports, Vol. 4; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 47 works
Citation information provided by
Web of Science

References (15)

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Magnetic properties of Fe 3 Sn 2 . II. Neutron diffraction study (and Mossbauer effect) journal November 1978
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Aligned crystallite powder of NdFeAsO 0.86 F 0.14 : Magnetic hysteresis and penetration depth journal June 2009
Magnetic properties of Y2Fe14B and Nd2Fe14B single crystals journal December 1993
The Metal Flux: A Preparative Tool for the Exploration of Intermetallic Compounds journal January 2006

Cited By (12)

Structurally Ordered Intermetallic Cobalt Stannide Nanocrystals for High‐Performance Electrocatalytic Overall Water‐Splitting journal October 2018
Structurally Ordered Intermetallic Cobalt Stannide Nanocrystals for High‐Performance Electrocatalytic Overall Water‐Splitting journal November 2018
Massive Dirac fermions in a ferromagnetic kagome metal journal March 2018
Tuning magnetocrystalline anisotropy by cobalt alloying in hexagonal Fe3Ge1 journal September 2018
Fe-Sn nanocrystalline films for flexible magnetic sensors with high thermal stability journal March 2019
Tuning the Magnetic Properties and Structural Stabilities of the 2-17-3 Magnets Sm 2 Fe 17 X 3 ( X = C , N) by Substituting La or Ce for Sm journal March 2018
Reorientation of antiferromagnetism in cobalt doped FeSn journal November 2019
Tuning the magnetocrystalline anisotropy of Fe 3 Sn by alloying journal January 2019
Electronic, magnetic, and thermodynamic properties of the kagome layer compound FeSn journal November 2019
Tartrate-Based Electrolyte for Electrodeposition of Fe–Sn Alloys journal May 2019
Fe-Sn nanocrystalline films for flexible magnetic sensors with high thermal stability text January 2019
Structural, electronic and magnetic properties of the ordered binary FePt, MnPt, and CrPt3 alloys journal March 2020

Figures / Tables (10)


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