论文信息 - ESR of Gd3+ in Y1−x−yYbxGdyInNi4

ESR of Gd3+ in Y1−x−yYbxGdyInNi4

Abstract Electron spin resonance (ESR) results of Gd 3+ diluted in (Y 1− x Yb x )InNi 4 for 0⩽ x ⩽0.8 are reported. It is found that for x =0 the linewidth presents the usual temperature linear behavior and a negative g -shift. As x is increased the residual linewidth also increases, and a non-linear temperature dependence is observed. An additional relaxation channel through the RKKY interaction is suggested to explain the results. The Yb exchange parameter is determined as function of the concentration.

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