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- Title
Crystal structure, magnetic and thermal properties of the non-stoichiometric alloys Tb<sub>0.95</sub>Pd<sub>2.20</sub>Mn<sub>0.85</sub> and Dy<sub>1.00</sub>Pd<sub>2.15</sub>Mn<sub>0.85</sub>.
- Authors
Kovaliuk, Taras; Colman, Ross Harvey; Vondráčková, Barbora; Kolomiets, Oleksandr; Klicpera, Milan
- Abstract
The alloys RNi2Mn and RCo2Mn with R representing the rare earth element are isostructural analogues of the binary Laves phases RNi2, RCo2. We have synthesized the isoelectronic Pd-based RPd2Mn analogues with R = Gd, Tb, and Dy, for the first time. They crystallize in a cubic structure, however, not in the cubic C15 (Fd-3m) structure of RNi2Mn, nor the Laves phase' structure. Instead, the crystal lattice is described by the Im-3m space group with Tb/Dy, Pd, and Mn atoms randomly distributed over the 2a Wyckoff position of the W-type structure (A2, disordered bcc). The magnetization data reveal a standard paramagnetic behavior, with effective magnetic moments strikingly close to those expected for Tb3+ and Dy3+ free ions, down to 130 K.
- Subjects
NONSTOICHIOMETRIC compounds; RARE earth metal alloys; CRYSTAL structure; MAGNETIC properties of metals; THERMAL properties of metals
- Publication
Metallic Materials / Kovové Materiály, 2023, Vol 61, Issue 3, p135
- ISSN
0023-432X
- Publication type
Article
- DOI
10.31577/km.2023.3.135