Effect of heat treatment of pure and carbon-polluted rhodium samples on the low-temperature resistivity

Abstract

We present a systematic investigation of conditions for heat treatment of Rh with the aim of increasing the residual resistivity ratio (RRR). The maximal value of RRR for a 25 μm thick foil was found to be 1050 and the optimal treatment conditions were high temperatures, above 1400◦C, and a low pressure of pure oxygen, around 1 μbar. Another batch of foils… (More)

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