STUDY ON MAGNETIZATION REVERSAL OF BARIUM FERRITE PARTICLES | Zendy

LI Xiao-hong | Zendy; Fulin Wei | Zendy; Zheng Yang | Zendy

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STUDY ON MAGNETIZATION REVERSAL OF BARIUM FERRITE PARTICLES

Author(s) -

LI Xiao-hong,

Fulin Wei,

Zheng Yang

Publication year - 2001

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.50.324

Subject(s) - barium ferrite , magnetocrystalline anisotropy , coercivity , materials science , anisotropy , condensed matter physics , magnetization , ferrite (magnet) , ellipsoid , magnetic anisotropy , magnetic field , physics , composite material , optics , quantum mechanics , astronomy

A model of a chain of oblate ellipsoids is proposed for magnetization reversal of barium ferrite particles. The angular dependences of coercivity and critical field were calculated with the consideration of the uniaxial magnetocrystalline anisotropy, the shape anisotropy, the interaction anisotropy of the ellipsoids, as well as the number of ellipsoids. This model could be used to explain the magnetization reversal mechanism of the oriented Ba ferrite particulate media.

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