Magnetic properties of mechanically milled nanosized Mn

• Autorzy: Wu, X. J. , Xu, X. W. , Sun, X. S.
• Języki publikacji: EN

Abstrakty

EN

Nanosized Mn powders were fabricated by milling Mn flakes in pure ethyl alcohol followed by homogenization. XRD analysis confirms single-phase characterization of the product and shows it has a grain size of 40 nm. The ZFC and FC magnetizations exhibit a large irreversibility with onset of about 60 K. The fit of the Curie-Weiss relation indicates strong AFM interaction in the considered system. A large coercive field and shifted hysteresis loops, i.e. He = 83.6 kA/m, are observed at 5 K in the 2 T field cooling case. The analysis indicates that surface anisotropy can lead to the occurrence of large exchange bias.

Słowa kluczowe

EN

nanosized powder; exchange bias; antiferromagnetism; surface anisotropy

• Czasopismo: Materials Science Poland
• Rocznik: 2009
• Tom: Vol. 27, No. 3
• Strony: 857--864
• Opis fizyczny: Bibliogr. 17 poz.

Twórcy

autor

Wu, X. J.

autor

Xu, X. W.

autor

Sun, X. S.

• Material Science & Technology College, Shenyang Ligong University, Shenyang 110168, China

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