STUDY ON THE M?SSBAUER EFFECT OF γ-Fe2O3 POWDER WITH CoxFe3-xO4-DOPED COATING | Zendy

LI SHI | Zendy; ZANG PEI-QUN | Zendy; JI GUI-QUAN | Zendy; LUO HE-LIE | Zendy; Ke Sun | Zendy

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STUDY ON THE M?SSBAUER EFFECT OF γ-Fe2O3 POWDER WITH CoxFe3-xO4-DOPED COATING

Author(s) -

LI SHI,

ZANG PEI-QUN,

JI GUI-QUAN,

LUO HE-LIE,

Ke Sun

Publication year - 1981

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.30.120

Subject(s) - materials science , coating , coercivity , doping , mössbauer spectroscopy , solid solution , mössbauer effect , epitaxy , analytical chemistry (journal) , chemical engineering , condensed matter physics , crystallography , metallurgy , composite material , optoelectronics , chemistry , chromatography , engineering , physics , layer (electronics)

The γ-Fe2O3 powder with CoxFe3-xO4-doped coating was obtained by reaction of the γ-Fe2O3 powder in the solutions containing Co++ and Fe++ ions. It was found that this epitaxial CoxFe3-xO4 coating raised the coercivity of the γ-Fe2O3 from 420 (Oe) to 715 (Oe).The epitaxial CoxFe3-xO4 coating was isvestigated by means of M?ssbauer Effect of 57Fe. The M?ssbauer Spectrum indicates that the surface of γ-Fe2O3 was doped with CoxFe3-xO4 solid solution, and a static magnetic interaction takes place between the γ-Fe2O3 matrix and CoxFe3-xO4 solid solution.

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