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arXiv · 0908.3352

Magnetic-field dependence of antiferromagnetic structure in CeRh1-xCoxIn5

M. Yokoyama·Y. Ikeda·I. Kawasaki·D. Nishikawa·K. Tenya·K. Kuwahara·H. Amitsuka
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Abstract

We investigated effects of magnetic field H on antiferromagnetic (AF) structures in CeRh_{1-x}Co_xIn_5 by performing the elastic neutron scattering measurements. By applying H along the [1,-1,0] direction, the incommensurate AF state with the propagation vector of q_{h1}=(1/2,1/2,0.297) observed at H=0 is replaced by the commensurate AF state with the q_{c2} = (1/2, 1/2, 1/4) modulation above 2 T for x=0.23, while the AF states with the q_{c1}=(1/2,1/2,1/2) and q_{h2}=(1/2,1/2,0.42) modulations seen at H=0 change into a single q_{c1}-AF state above ~1.6 T for x=0.7. These results suggest the different types of AF correlation for Co concentrations of 0.23 and 0.7 in an applied magnetic field H.

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M. Yokoyama, Y. Ikeda, I. Kawasaki, D. Nishikawa, K. Tenya, K. Kuwahara, H. Amitsuka. 2009-08-24. Magnetic-field dependence of antiferromagnetic structure in CeRh1-xCoxIn5. https://doi.org/10.1088/1742-6596/200/1/012239

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