Chemical synthesis of L10 Fe-Pt-Ni alloy nanoparticles

Deepchand, Vimal; Abel, Frank M.; Tzitzios, Vasileios; Hadjipanayis, George C.

doi:10.1063/1.5007756

Title: Chemical synthesis of L1₀ Fe-Pt-Ni alloy nanoparticles

Journal Article · Fri Dec 22 00:00:00 EST 2017 · AIP Advances

DOI:https://doi.org/10.1063/1.5007756· OSTI ID:1499252

Deepchand, Vimal ^[1]; Abel, Frank M. ^[1];

^[2]; Hadjipanayis, George C. ^[1]

Univ. of Delaware, Newark, DE (United States)
Khalifa Univ. of Science and Technology, Abu Dhabi (United Arab Emirates)

This work focuses on the study of the magnetic and structural properties of chemically synthesized FePt1-xNix nanoparticles, with Ni content x in the range 0.2-0.4. We report the effect of Ni substitution on the L1₀ structure, on both the as-synthesized and annealed nanoparticles. A decrease in nanoparticle size as well as in chemical order is observed with an increase in Ni content, for both the as-made and annealed nanoparticles. The results also show that the post annealing procedure at 700oC significantly enhanced the L1₀ ordering of the nanoparticles. Substitution of nickel leads to a decrease in coercivity from 14.9 kOe in FePt to 0.8 kOe for FePt_0.6Ni_0.4 alloy, while the magnetization at 3 T is increased from 48 emu/g to 88 emu/g.

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Research Organization:: Univ. of Delaware, Newark, DE (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: FG02-90ER45413; DOE-FG02-90ER45413

OSTI ID:: 1499252

Alternate ID(s):: OSTI ID: 1414614

Journal Information:: AIP Advances, Vol. 8, Issue 5; ISSN 2158-3226

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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