Electronic structures of nanocrystalline Fe90-xCuxSi10-yBy soft magnets | Zendy

Jihoon Park | Zendy; YangKi Hong | Zendy; Woncheol Lee | Zendy; Seok Bae | Zendy; SeongGon Kim | Zendy; Chul-Jin Choi | Zendy

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Electronic structures of nanocrystalline Fe90-xCuxSi10-yBy soft magnets

Author(s) -

Jihoon Park,

YangKi Hong,

Woncheol Lee,

Seok Bae,

SeongGon Kim,

Chul-Jin Choi

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4943359

Subject(s) - nanocrystalline material , density functional theory , magnet , saturation (graph theory) , amorphous solid , condensed matter physics , materials science , physics , crystallography , chemistry , nanotechnology , combinatorics , mathematics , quantum mechanics

We have calculated electronic structures of nanocrystalline Fe90−xCuxSi10−yBy using first principles calculations based on density functional theory (DFT) to obtain saturation magnetic flux density (Bs). The Bs of crystalline (Fe3Si) and amorphous (Fe-B) phases in Fe90−xCuxSi10−yBy were separately calculated, and the total Bs of Fe90−xCuxSi10−yBy was derived by the summation of the Bs for the Fe3Si and Fe-B phases. The calculated Bs of Fe3Si is 1.35 T, and that of Fe-B varies from 2.08 to 2.22 T based on Fe to B ratios. Therefore, a total Bs higher than 1.80 T can be obtained with y ≥ 4 for both x = 1 and 2 in Fe90−xCuxSi10−yBy

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