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首页> 外文期刊>Superconductor Science & Technology >Magnetoresistive effect in bulk composites 1-2-3 YBCO + CuO and 1-2-3 YBCO + BaPb_(1-x)Sn_xO_3 and their application as magnetic field sensors at 77 K
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Magnetoresistive effect in bulk composites 1-2-3 YBCO + CuO and 1-2-3 YBCO + BaPb_(1-x)Sn_xO_3 and their application as magnetic field sensors at 77 K

机译：块状复合材料1-2-3 YBCO + CuO和1-2-3 YBCO + BaPb_（1-x）Sn_xO_3的磁阻效应及其在77 K下作为磁场传感器的应用

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摘要

We have studied the magnetoresistive effect in bulk 1-2-3 YBCO+ CuO and 1-2-3 YBCO + BaPb_(1-x)Sn_xO_3 composites prepared using the fast backing technique. We have found that the composites exhibit large magnetoresistance in low magnetic fields (<100 Oe) for a broad temperature range. We have studied the experimental dependences of resistivity versus magnetic field at various transport current densities. The high-T_C superconductor (HTSC) based composites exhibit a much higher sensitivity to weak magnetic fields at liquid nitrogen temperature, compared to that for pure HTSC ceramics. This effect is attractive for practical applications and the composite materials can be used as active elements in magnetic field sensor devices.
机译：我们研究了使用快速支撑技术制备的1-2-3 YBCO + CuO和1-2-3 YBCO + BaPb_（1-x）Sn_xO_3复合材料的磁阻效应。我们发现，该复合材料在很宽的温度范围内的低磁场（<100 Oe）下显示出较大的磁阻。我们研究了在各种传输电流密度下电阻率与磁场的实验相关性。与纯HTSC陶瓷相比，高T_C超导体（HTSC）基复合材料在液氮温度下对弱磁场的敏感性更高。该效果对于实际应用是有吸引力的，并且该复合材料可以用作磁场传感器设备中的有源元件。

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