NMR Study of Oblique Antiferromagnetic Phase in Random Mixture CsMn_1−xCo_xCl₃·2H₂O

抄録

To clarify the spin structure in oblique antiferromagnetic (OAF) phase, proton NMR measurements are carried out at 1.7 K in zero applied field. The OAF phase is found in the region of 2.5%\lesssimx\lesssim11%, from the concentration dependence of NMR spectra. The spectra are interpreted by the model that in OAF phase, the moments surrounding Co impurity are drawn towards the impurity and then directed to other directions. Simultaneous tilting of all moments is denied by a little shift of the main line.