Structural and magnetic properties of amorphous Co_xZr_100-x films

P Rani and V Kurichenko and E Guerbuez and B Sanyal and G Andersson, PHYSICAL REVIEW B, 108, 134412 (2023).

DOI: 10.1103/PhysRevB.108.134412

Magnetometry and first-principles density functional theory-based calculations were used to investigate the concentration dependence of magnetic properties of amorphous CoxZr100-x alloys. A linear increase in saturation magnetization (Ms) is observed in both the experiments and calculations. Samples with Co content of at least 62 at.% are inferred to be ferromagnetic at 5 K. The experimentally determined ordering temperature is found to scale quadratically with Co concentration indicating a complex interplay between local structural motifs and magnetic parameters such as exchange interaction and anisotropy.

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