论文标题
氧饱和度对RUSR2（EU1.5CE0.5）CU2O10-Δ陶瓷样品中AFM-WFM-HTSC过渡温度的影响
Effect of Oxygen Saturation on AFM-WFM-HTSC Transition Temperatures in RuSr2(Eu1.5Ce0.5)Cu2O10-δ Ceramic Samples
论文作者
论文摘要
研究了高压氧气中的退火对磁性超导体Europium的陶瓷样品超导过渡温度的影响，基于Europium的1222 Ruthenocuprate。结果表明，样品的性质与颗粒超导系统的行为一致。由于氧饱和度，超导过渡温度变得更高。特别是，晶间培养基的超导过渡温度的偏移为9.2 K，并且在颗粒6.8 K中的物质中的偏移。由于氧气扩散的机理沿晶界，因此认为这种差异被认为。在135 K和350 K之间的温度范围内，电阻的行为遵守了三维情况的可变范围的莫特定律。
The effect of annealing in high pressure oxygen atmosphere on superconducting transition temperatures for ceramic samples of magnetic superconductor europium based 1222 ruthenocuprate was studied. It was shown that the properties of the samples are consistent with the behavior of granular superconducting system. As a result of oxygen saturation the superconducting transition temperatures become higher. Particularly, the shift of superconducting transition temperature for the intergranular medium is 9.2 K and for the matter within the granules 6.8 K. This difference is supposed due to the mechanism of oxygen diffusion along the grain boundaries. In the temperature range between 135 K and 350 K the behavior of resistance obeyed the Mott law of variable range hopping for three dimensional case.
