Chemistry and Physics Faculty Articles
Title
Ligand Passivated Core−Shell FePt@Co Nanomagnets Exhibiting Enhanced Energy Product
Document Type
Article
Publication Date
8-29-2016
Publication Title
Chemistry of Materials
ISSN
0897-4756
Volume
28
Issue/No.
15
First Page
5480
Last Page
5487
Abstract
Systematic growth of a soft-magnet Co shell (0.6 to 2.7 nm thick) around a hard-magnet Fe0.65Pt0.35 core (5 nm in diameter) has been achieved in a one-pot microwave synthesis. This controlled growth led to a 4-fold enhancement in the energy product of the core–shell assembly as compared to the energy product of bare Fe0.65Pt0.35 nanoparticles. The simultaneous enhancement of coercivity and saturation moment reflects the onset of theoretically predicted exchange-spring behavior. The demonstration of nanoscale exchange-spring magnets can lead to improved high-performance magnet design for energy applications.
Additional Comments
NSF grant #: DMR-1507233; NSF Cooperative Agreement #: DMR-1157490
NSUWorks Citation
Carnevale, D. J., Shatruk, M., & Strouse, G. F. (2016). Ligand Passivated Core−Shell FePt@Co Nanomagnets Exhibiting Enhanced Energy Product. Chemistry of Materials, 28, (15), 5480 - 5487. https://doi.org/10.1021/acs.chemmater.6b02062. Retrieved from https://nsuworks.nova.edu/cnso_chemphys_facarticles/219
DOI
10.1021/acs.chemmater.6b02062
Comments
©2016 American Chemical Society