Published January 1, 2009
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Magnetic properties of Ce3-xGdxCo11B4 borides
Creators
- 1. Nevsehir Univ, Fac Arts & Sci, Dept Phys, TR-50300 Nevsehir, Turkey
- 2. Natl Metrol Inst, TUBITAK UME, TR-41470 Gebze, Turkey
- 3. Ankara Univ, Fac Sci, Dept Phys, TR-06100 Ankara, Turkey
Description
The structure and magnetic properties of Ce3-xGdxCo11B4 borides have been studied by X-ray powder diffraction (XRPD), magnetization and differential scanning calorimetry (DSC) measurements. X-ray analysis reveals that the compounds crystallize in the hexagonal Ce3Co11B4-type structure with P6/mmm space group. The substitution of Gd for Ce leads to an increase of the unit-cell parameter a and the unit-cell volume V, while the unit-cell parameter c decreases linearly. Magnetic measurements indicate that all samples are ordered magnetically below the Curie temperature. The Curie temperatures increase as Ce is substituted by Gd. The saturation magnetization at 4 K decreases upon the Gd substitution up to x = 1, and then increases. (C) 2009 Elsevier B.V. All rights reserved.
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