TITLE:
Structural Stabilizing Effect of Zn Substitution on MnAl and Its Magnetic Properties
AUTHORS:
H. X. Wang, P. Z. Si, W. Jiang, J. G. Lee, C. J. Choi, J. J. Liu, Q. Wu, M. Zhong, H. L. Ge
KEYWORDS:
MnAl, Magnetic Property, Zn Substitution
JOURNAL NAME:
Open Journal of Microphysics,
Vol.1 No.2,
August
30,
2011
ABSTRACT: The effect of Zn substitution on the structure and magnetic properties of τ-MnAl has been investigated sys-tematically. It is found that Zn substitution can stabilize the structure of τ-phase and thus a significant amount of τ-phase can be produced. Zn increases the coercivity and saturation magnetization of the τ-MnAl but reduces the Currie temperature. However, excess Zn is detrimental to the magnetic parameters. The optimum magnetic performance was found in samples with Zn substitution to 2.9% Mn atoms and 3.5% Al atoms, respectively.