Rapidly solidified Sm-Co-Hf-B magnetic Nano-composites: Experimental and DFT studies

[Display omitted] •Hf addition stabilizes the 1:7H phase.•Grain refinement is achieved by B addition.•The maximum coercivity (Hc) of the ribbons is achieved at Hf ≃ 3 at.%.•The remanent magnetization increases with increasing B content.•Experimental observations are in conformity with our theoretica...

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