Article ID Journal Published Year Pages File Type
1798770 Journal of Magnetism and Magnetic Materials 2016 5 Pages PDF
Abstract

•There is a feature in concentration dependence of the propagation vector at x≈0.75x≈0.75.•Doping with 3.3% of Co crushes a temperature dependence of the propagation vector.•Doping with 16.5% of Co induces the new temperature dependence of the wave vector.

We present the susceptibility and neutron diffraction data on multiferroic Ni3−xCoxV2O8 with x=0.1 and 0.5. The temperature dependence of the susceptibility indicates that the magnetic order–disorder transition occurs at THTI=8.5 K in both samples. Below THTI, the high-temperature incommensurate magnetic structure is realized, which undergoes a transition to the low-temperature incommensurate phase when the sample is cooled. The temperature evolution of the propagation vector k for x=0.1 is very weak, which confirms previous studies showing that substitution of 3.5% Ni ions by Co ions suppresses the explicit temperature dependence of k that is observed in the parent compound. On the other hand, we found that the vector k for x=0.5 exhibits a definite temperature dependence, which differs from the case of the undoped sample (x=0).

Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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