Investigation of the crystal structure and magnetic properties of Nd 3-xGdxCo11B4 borides
Journal of Rare Earths, cilt.29, sa.5, ss.466-470, 2011 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 29 Sayı: 5
- Basım Tarihi: 2011
- Doi Numarası: 10.1016/s1002-0721(10)60480-2
- Dergi Adı: Journal of Rare Earths
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.466-470
- Anahtar Kelimeler: intermetallics, magnetic measurements, magnetically ordered materials, rare earths
- Ankara Hacı Bayram Veli Üniversitesi Adresli: Hayır
Özet
Polycrystalline samples of pseudo-ternary intermetallic Nd 3-xGdxCo11B4 (x=0, 1, 2, 3) borides prepared by standard arc-melting were characterized by X-ray powder diffraction (XRPD), magnetization and differential scanning calorimetry (DSC) measurements. The X-ray diffraction patterns indicated the hexagonal Ce3Co 11B4-type structure with P6/mmm space group for each composition. The substitution of Gd for Nd led to a decrease of the unit-cell parameters a and the unit-cell volume V, while the unit-cell parameter c increased linearly. Magnetic measurements indicated that all samples were ordered magnetically below the Curie temperature. The Curie temperatures increased as Nd was substituted by Gd. The saturation magnetization at 4 K decreased upon the Gd substitution up to x=1, and then increased. © 2011 The Chinese Society of Rare Earths.