Magnetic properties of Zr doped Y9Co7
R Ranganathan J L Tholence B V B Sarkissian
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Detailed measurements of magnetization and ac susceptibility at low temperatures of 1% Zr-substituted Y9Co7 are presented. All results are indicative of itinerant weak ferromagnetism withTc ∼ 9.5 K. The zero-field magnetizations followT2 orT4/3 behaviour as in the Ni-substituted system. The estimated critical exponents areβ=0.38±0.03,γ=1.16±0.05. It is argued that the main effect of the non-magnetic Zr-substitution in Y9Co7 is to stabilize the ferromagnetic ordering by suppressing the ‘hopping’ of Co atoms along thec-axis sites of the hexagonal structure.
R Ranganathan1 J L Tholence1 2 B V B Sarkissian1 3
Volume 97, 2023
Continuous Article Publishing mode
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