Structural and magnetic properties of Tb0.27Dy0.73Fe2-xNbx (x = 0, 0.05, 0.1 and 0.2)

Author

Babu, Hari V. ; Markandeyulu, G. ; Subrahmanyam, A. ; Palit, M. ; Pandian, S.

Author_Institution

Indian Inst. of Technol., Chennai

fYear

2006

fDate

8-12 May 2006

Firstpage

451

Lastpage

451

Abstract

In this paper, the effect of substituting Fe partially by the 4d element Nb on the structural and magnetic properties of Tb_0.27Dy_0.73Fe₂ is reported. Polycrystalline compounds of Tb_0.27Dy_0.73Fe_2-xNb_x (x = 0, 0.05, 0.1 and 0.2) were prepared by arc melting the constituent elements (rare earths-99.9 % pure, Fe and Nb -99.95 % pure) in an arc furnace under argon atmosphere. The ingots were annealed in vacuum at 950degC for a week. X-ray diffraction patterns of these compounds were taken using a PANalytical X-ray diffractrometer. Magnetization up to 12 kOe and Curie temperature (T_c) measurements were carried out using a PAR-155 vibrating sample magnetometer (VSM). Magnetostriction measurements at room temperature were carried out employing strain gauge method.

Keywords

Curie temperature; X-ray diffraction; annealing; crystal structure; dysprosium alloys; giant magnetoresistance; ingots; iron alloys; magnetisation; magnetostriction; materials preparation; niobium alloys; terbium alloys; Curie temperature; Tb_0.27Dy_0.73Fe₂Nb; X-ray diffraction; annealing; arc melting; giant magnetostriction; ingots; magnetic properties; magnetization; magnetotriction measurements; polycrystalline compounds; strain gauge method; temperature 950 C; Annealing; Argon; Atmosphere; Furnaces; Iron; Magnetic properties; Niobium; Strain measurement; Temperature measurement; X-ray diffraction;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Conference_Location

San Diego, CA

Print_ISBN

1-4244-1479-2

Type

conf

DOI

10.1109/INTMAG.2006.376175

Filename

4261884