Magnetic properties of intermetallic compounds La(Ni,Co,Cu)3

✍ Scribed by Tazuke, Y. ;Tanikawa, H. ;Okano, A. ;Miyaji, T.

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 309 KB
• Volume: 203
• Category: Article
• ISSN: 0031-8965
• DOI: 10.1002/pssa.200669521

✦ Synopsis

Abstract

LaNi~3~ exhibited a metallic antiferromagnetic property with T ~N~ = 30 K. La(Ni~1–x~ Co~x~ )~3~ with x = 0.01, 0.03 and 0.05 exhibited ferromagnetic properties, T ~C~ increasing linearly with increasing x . La(Ni~1–2__z__~ Co~z~ Cu~z~ )~3~ with z = 0.015 exhibited a ferromagnetic property with a small T ~C~. A La(Ni~1–y~ Cu~y~ )~3~ sample with y = 0.01 exhibited a Pauli‐paramagnetic property; those with y = 0.02, 0.03 and 0.04 exhibited gradual metamagnetic behavior and that with y = 0.05 exhibited a ferromagnetic property. The gradual metamagnetic M –H variations are numerically simulated by using Landau‐type free energies. The results suggest that the gradual metamagnetic behavior occurs from an antiferromagnetic state to a ferromagnetic one. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)