ESR investigation of the spin dynamics in (Gd_{1-x}Y_{x})_2PdSi_{3}

Details ESR investigation of the spin dynamics in (Gd_{1-x}Y_{x})_2PdSi_{3} ESR investigation of the spin dynamics in (Gd_{1-x}Y_{x})_2PdSi_{3}

2002-11-26

arxiv.org/abs/cond-mat/0211587v1

Solid State Communications 125, 327 (2003)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1016/S0038-1098(02)00818-9

We report electron-spin resonance measurements in polycrystalline samples of (Gd_{1-x}Y_{x})_2PdSi_{3}. We observe the onset of a broadening of the linewidth and of a decrease of the resonance field at approximately twice the Neel temperature in the paramagnetic state, this characteristic temperature coincides with the electrical resistivity minimum. The high-temperature behaviour of the linewidth is governed by a strong bottleneck effect.

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