Title :
Magnetic properties of the ErFe10-xGaxSi2 compounds
Author :
Yin, X.Y. ; Tang, N. ; Wang, J.L. ; Fuquan, B. ; Wu, G.H. ; Fuming, Yang ; Shen, Y.P. ; Zhong, X.P.
Author_Institution :
Inst. of Phys., Acad. Sinica, Beijing, China
fDate :
7/1/2001 12:00:00 AM
Abstract :
The ErFe10-xGaxSi2 compounds with the ThMn12-type structure were synthesized for x=0.0, 0.5, 1.0, 1.5 and 2.0. With increasing Ga content, the lattice constant c and the unit-cell volume V increase monotonically. The lattice constant, a, and the Curie temperature increase first, go through a maximum and then decrease with increasing x. Spin re-orientation from the easy-cone to the uniaxial type is detected for all the compounds as the temperature increases from 5 to 300 K. A tentative spin phase diagram is constructed for ErFe10-xGaxSi2. The saturation magnetization decreases monotonically which can be understood in terms of a simple dilution model
Keywords :
Curie temperature; crystal structure; dilute magnetic materials; erbium alloys; ferromagnetic materials; gallium alloys; iron alloys; lattice constants; magnetic anisotropy; magnetisation; silicon alloys; spin dynamics; 5 to 300 K; Curie temperature; Er(FeGa)10Si2; ErFe10-xGaxSi2; crystal structure; dilution model; lattice constant; magnetic properties; magnetocrystalline anisotropy; rare earth intermetallic compound; saturation magnetization; spin phase diagram; spin reorientation; unit cell volume; Anisotropic magnetoresistance; Iron; Lattices; Magnetic anisotropy; Magnetic field measurement; Magnetic materials; Magnetic properties; Perpendicular magnetic anisotropy; Saturation magnetization; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
