Magnetic properties of Zr(Cr1 − xFex)2 alloys and their hydrides

Author links open overlay panelJ.A.H.CoaquiraaH.R.RechenbergaJ.Mestnik Filhob

a

Instituto de Física, Universidade de São Paulo, C.P. 66318, 05315-970 São Paulo, Brazil

b

Instituto de Pesquisas Energéticas e Nucleares, C.P. 1049, 05422-970 São Paulo, Brazil

Available online 1 March 2002.

Abstract

The magnetic properties of MgZn2-type Zr(Cr1 −xFex)2 (0.3 ⩽ x ⩽ 0.7) and Zr(Cr1 −xFex)2Hy (y ∼ 3) alloys have been investigated. Arrott plots showed no evidence for ferromagnetic ordering. ZFC/FC magnetization and Mössbauer spectroscopic data indicated spin glass-like freezing. Saturation moments in the unhydrided alloys decreased with decreasing Fe concentration, vanishing for x ≈ 0.3. Hydrogen absorption made magnetic moments increase and freezing temperatures decrease.

https://sci-hub.tw/https://www.sciencedirect.com/science/article/abs/pii/S0304885398009202