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透明导电氧化铟锡薄膜的特殊应用 总被引:1,自引:0,他引:1
阐述了氧化铟锡(ITO)薄膜的气敏特性及其导电扩散阻挡作用,对ITO气敏薄膜及扩散阻挡层薄膜的制备过程、测试方法和应用进行了研究讨论。 相似文献
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直流磁控溅射制备YBCO高Tc超导薄膜过程中靶成分的在线监测 总被引:1,自引:0,他引:1
本阐述了用单色仪和光电倍增管对平面直流磁控溅射制备YBCO高Tc超导薄膜过程中靶的放电成分变化情况进行在线监测的实验方法,设备和过程,得到了O2:Ar=1:4时,靶表面成份随时间变化的关系和相应薄膜的质量,并对实验结果进行了讨论。 相似文献
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电容式传感元件测量导电液体的液面高度 总被引:1,自引:0,他引:1
阐述了用一根圆柱形电极测量导电液体液面高度的实验原理,方法,过程和实验结果,并说明了它对物理实验教学的意义。 相似文献
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本文在引入了弹道输运的概念后,对高温超导体正常态下电阻率和霍耳效应的各向异性以及它们奇异的温度特性统一地进行了解释;对温差电势率的各向异性及其温度行为进行了讨论;也分析了高温超导体由正常态向超导态转变的过程,并给出了超导转变温度与材料一些物理参数的关系. 相似文献
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INVESTIGATION OF EMPIRICAL LAWS FOR SUPERCONDUCTIVITY OF ALLOY AND COMPOUND SUPERCONDUCTORS 下载免费PDF全文
By studying the average effect of the electronegativity of alloy and compound superconductors, some empirical laws are found. The average value of the electronegativity of alloy superconductors \overlineχ is from 1.3 to 1.9, most of which is concentrated in the region 1.5<\overlineχ<1.8. The \overlineχ of many higher Tc superconductors is nearly 1.60. All these characteristics are similar to element superconductors. The average value of the electronegativity \overlineη of positive valence elements in oxide superconductors is from 1.3 to 1.6, and the average effect of an electronegativity of zero on every element \overlineζ is from 1.75 to 2.00. The mean of \overlineη and \overlineζ is from 1.5 to 1.8. When both \overlineη and \overlineζ are near the limit value (1.3 or 1.6 and 1.75 or 2.00), the material has a very low Tc, even is non-superconductive. The \overlineζ of other compound superconductors is either too high or too low, and the \overlineζ is too low so that the Tc of these superconductors is quite low. Studying the average effect of the electronegativity of non-superconducting compounds further confirms the laws. 相似文献
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