Abstract
The influence of a nonmagnetic dilution on the magnetic properties of a ZnxCd1−xCr2S4 system (0.1<x<0.9) has been studied by means of microwave magnetic resonance at temperatures between 10 and 293K. Experimental results for the peak-to-peak linewidth ΔHpp and the slope dΔHpp∕dT have been discussed by the reduction of the exchange interaction between magnetic ions through the Zn substitution. For 0.6<x<0.9 at T<50K, the electron-paramagnetic-resonance line tends toward the Lorentzian shape, indicating a medium with competing interactions with strong exchange coupling. For x<0.4 at T<50K the line shapes have a rich Gaussian line indicating an increment of the interaction cluster medium.
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