2Flux growth and characterization of Ce-substituted Nd2Fe14B single crystals [Growth and Characterization of Ce- Substituted Nd2Fe1411B Single Crystals]

Susner, Michael A.; Conner, Benjamin S.; Saparov, Bayrammurad I.; McGuire, Michael A.; Crumlin, Ethan J.; Veith, Gabriel M.; Cao, Huibo; Shanavas, Kavungal V.; Parker, David S.; Chakoumakos, Bryan C.; Sales, Brian C.

doi:10.1016/j.jmmm.2016.10.127

Title: 2Flux growth and characterization of Ce-substituted ${Nd}_{2} {Fe}_{14} B$ single crystals [Growth and Characterization of Ce- Substituted Nd₂Fe₁₄¹¹B Single Crystals]

Journal Article · Sat Jul 01 00:00:00 EDT 2017 · Journal of Magnetism and Magnetic Materials

DOI:https://doi.org/10.1016/j.jmmm.2016.10.127· OSTI ID:1379909

Susner, Michael A.; Conner, Benjamin S.; Saparov, Bayrammurad I.; McGuire, Michael A.; Crumlin, Ethan J.; Veith, Gabriel M.; Cao, Huibo; Shanavas, Kavungal V.; Parker, David S.; Chakoumakos, Bryan C.; Sales, Brian C.

Single crystals of (Nd 1-x Ce x ) 2 Fe 14 B, some reaching ~6×8×8mm 3 in volume, are grown out of Fe-(Nd, Ce) flux. This crystal growth method allows for large (Nd 1-x Ce x ) 2 Fe 14 B single crystals to be synthesized using a simple flux growth procedure. Chemical and structural analyses of the crystals indicate that (Nd 1-x Ce x ) 2 Fe 14 B forms a solid solution until at least x=0.38 with a Vegard-like variation of the lattice constants with x. Refinements of single crystal neutron diffraction data indicate that Ce has a slight site preference (7:3) for the 4g rare earth site over the 4f site. Magnetization measurements at 300 K show only small decreases with increasing Ce content in saturation magnetization (M s ) and anisotropy field (H A ), and Curie temperature (T C ). First principles calculations are carried out to understand the effect of Ce substitution on the electronic and magnetic properties. For a multitude of applications, it is expected that the advantage of incorporating lower-cost and more abundant Ce will outweigh the small adverse effects on magnetic properties. Ce-substituted Nd 2 Fe 14 B is therefore a potential high-performance permanent magnet material with substantially reduced Nd content.

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Research Organization:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

DOE Contract Number:: AC02-05CH11231

OSTI ID:: 1379909

Journal Information:: Journal of Magnetism and Magnetic Materials, Vol. 434, Issue C; ISSN 0304-8853

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

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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 Pandey, Tribhuwan; Du, Mao-Hua; Parker, David S. Physical Review Applied, Vol. 9, Issue 3 https://doi.org/10.1103/physrevapplied.9.034002	journal	March 2018
Single-Crystal Permanent Magnets: Extraordinary Magnetic Behavior in the $Ta$ -, $Cu$ -, and $Fe$ -Substituted ${Ce Co}_{5}$ Systems Lamichhane, Tej N.; Onyszczak, Michael T.; Palasyuk, Olena Physical Review Applied, Vol. 11, Issue 1 https://doi.org/10.1103/physrevapplied.11.014052	journal	January 2019
Borderline Magnetism: How Adding $Mg$ to Paramagnetic $Ce {Co}_{3}$ Makes a 450-K Ferromagnet with Large Magnetic Anisotropy Pandey, Tribhuwan; Parker, David S. Physical Review Applied, Vol. 10, Issue 3 https://doi.org/10.1103/physrevapplied.10.034038	journal	September 2018
Magnetic hardening of Nd-Ce-Fe-B films with high Ce concentration Ren, Hanyang; Abbas, Nadeem; Liu, Yang Scientific Reports, Vol. 8, Issue 1 https://doi.org/10.1038/s41598-018-29907-4	journal	August 2018

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