DOI: 10.1063/1.4775581. Combinatorial exploration of rare-earth-free permanent magnets: Magnetic and microstructural properties of Fe-Co-W thin films

Combinatorial exploration of rare-earth-free permanent magnets: Magnetic and microstructural properties of Fe-Co-W thin films

10.1063/1.4775581

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

We have investigated the magnetic and structural properties of Fe-Co-W films using a composition spread technique. From the magnetometry measurements, large magnetization (900 emu/cm3) and enhanced perpendicular coercive fields (2–3 kOe) of low W concentration films were observed. The synchrotron diffraction results show a structural transition from a crystalline to an amorphous state and the crystallization onset increases with increasing W concentration. The SEM and TEM characterizations show that the films with low W concentrations have vertically standing platelet-like grain structures which is ascribed to the enhanced coercive fields. Magnetometry studies indicate that as the W concentration increases, microstructural change results in evolution of magnetization reversal mechanism.

Authors 8

T. R. Gao (first)
Y. Q. Wu (additional)
S. Fackler (additional)
I. Kierzewski (additional)
Y. Zhang (additional)
A. Mehta (additional)
M. J. Kramer (additional)
I. Takeuchi (additional)

References 15 Referenced 40

{'volume-title': 'Rare-earth Iron Permanent Magnets', 'year': '1996', 'key': '2023080320212444500_c1'} / Rare-earth Iron Permanent Magnets (1996)
10.1063/1.2710771 / Appl. Phys. Lett. (2007)
{'volume-title': 'Permanent Magnetism', 'year': '1999', 'key': '2023080320212444500_c3'} / Permanent Magnetism (1999)
10.1007/s11837-012-0351-z / JOM (2012)
10.1103/PhysRevB.30.3783 / Phys. Rev. B (1984)
10.1088/0953-8984/11/43/103 / J. Phys.: Condens. Matter (1999)
10.2320/jinstmet1952.45.1_82 / J. Jpn. Inst. Met. (1981)
10.1109/TMAG.2011.2157317 / IEEE Trans. Magn. (2011)
10.1063/1.344875 / J. Appl. Phys. (1990)
10.1038/nmat829 / Nature Mater. (2003)
10.1063/1.345964 / J. Appl. Phys. (1990)
10.1063/1.108074 / Appl. Phys. Lett. (1992)
10.1063/1.1661260 / J. Appl. Phys. (1972)
10.1063/1.2357637 / J. Appl. Phys. (2006)
10.1063/1.2829023 / J. Appl. Phys. (2008)

Dates

Type	When
Created	12 years, 7 months ago (Jan. 18, 2013, 8 p.m.)
Deposited	2 years, 1 month ago (Aug. 3, 2023, 4:21 p.m.)
Indexed	2 weeks ago (Aug. 23, 2025, 9:47 p.m.)
Issued	12 years, 7 months ago (Jan. 14, 2013)
Published	12 years, 7 months ago (Jan. 14, 2013)
Published Online	12 years, 7 months ago (Jan. 18, 2013)
Published Print	12 years, 7 months ago (Jan. 14, 2013)

Funders 0

None

BibTeX

@article{Gao_2013, title={Combinatorial exploration of rare-earth-free permanent magnets: Magnetic and microstructural properties of Fe-Co-W thin films}, volume={102}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.4775581}, DOI={10.1063/1.4775581}, number={2}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Gao, T. R. and Wu, Y. Q. and Fackler, S. and Kierzewski, I. and Zhang, Y. and Mehta, A. and Kramer, M. J. and Takeuchi, I.}, year={2013}, month=jan }

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