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

A. Loidl; E.V. Sampathkumaran; H.-A. Krug von Nidda; J. Deisenhofer

arxiv: cond-mat/0211587 · v1 · submitted 2002-11-26 · ❄️ cond-mat.str-el

ESR investigation of the spin dynamics in (Gd_(1-x)Y_(x))₂PdSi₃

J. Deisenhofer , H.-A. Krug von Nidda , A. Loidl , E.V. Sampathkumaran This is my paper

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keywords linewidthpdsiresonancetemperatureapproximatelybehaviourbottleneckbroadening

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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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ESR investigation of the spin dynamics in (Gd_(1-x)Y_(x))₂PdSi₃

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