Ferromagnetism in Laves-phase WFe{sub 2} nanoparticles

Journal Article · Wed Jul 01 00:00:00 EDT 2015 · APL Materials

DOI:https://doi.org/10.1063/1.4926610· OSTI ID:22499231

Koten, M. A.; Shield, J. E. ^[1]; Manchanda, P.; Balamurugan, B.; Skomski, R.; Sellmyer, D. J. ^[2]

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1. Department of Mechanical and Materials Engineering and Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, Nebraska 68588-0526 (United States)
2. Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, Nebraska 68588-0299 (United States)

While rare-earth based Laves phases are known to exhibit large magnetostriction, the magnetic properties of some binary Laves phases containing transition metals alone are not well known. This is because many of these compounds contain refractory elements that complicate melt processing due to high melting temperatures and extensive phase separation. Here, phase-pure WFe{sub 2} nanoclusters, with the hexagonal C14 Laves structure, were deposited via inert gas condensation, allowing for the first known measurement of ferromagnetism in this phase, with M{sub S} of 26.4 emu/g (346 emu/cm{sup 3}) and a K{sub U} of 286 kerg/cm{sup 3}, at 10 K, and a T{sub C} of 550 K.

• OSTI ID: 22499231
• Journal Information: APL Materials, Vol. 3, Issue 7; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2166-532X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
DEPOSITS
FERROMAGNETISM
LAVES PHASES
MAGNETOSTRICTION
MELTING POINTS
NANOPARTICLES
NANOSTRUCTURES
RARE EARTHS
TRANSITION ELEMENTS