Nano-magnetism of magnetostriction in Fe{sub 35}Co{sub 65}

Journal Article · Mon Mar 03 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4866183· OSTI ID:22283074

Lisfi, A. ^[1]; Ren, T.; Khachaturyan, A. ^[2]

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1. Department of Physics, Morgan State University, Baltimore, Maryland 21251 (United States)
2. Department of Materials Science and Engineering, University of California, Berkeley, California 94720 (United States)

The nature of the large magnetostriction in body-centered Fe-based solid solutions has been widely discussed in the literature. Here, we use a combination of magnetostriction, magnetization, torque, and transmission electron microscopy measurements of specially annealed Co{sub 65}Fe{sub 35} to show that the magnetostriction is caused by coherent uniaxial nano-precipitates. We show further that these nano-precipitates lower the magnetocrystalline anisotropy in these alloys to K{sub 1} = −2.16 × 10{sup 4} J/m{sup 3}.

• OSTI ID: 22283074
• Journal Information: Applied Physics Letters, Vol. 104, Issue 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
ANISOTROPY
ANNEALING
BCC LATTICES
COBALT ALLOYS
CRYSTALS
INTERMETALLIC COMPOUNDS
IRON ALLOYS
MAGNETISM
MAGNETIZATION
MAGNETOSTRICTION
NANOSTRUCTURES
PRECIPITATION
SOLID SOLUTIONS
TORQUE
TRANSMISSION ELECTRON MICROSCOPY