Engineering Research Equipment Grant: Equipment for Resistance Measurement of Superconducting Particles

世界各地的几个组织已经报道了在高达292oK的温度下，稀土-钡-铜氧化物中存在超导电性的证据。这些高温(Tc200oK)微观超导区的分离、鉴定和表征是制备块体高温超导体所必需的。派和他在科罗拉多州立大学的同事开发了一种技术，利用迈斯纳效应来分离高转变温度的小粒子。然而，作为确证试验，必须证明对分离的颗粒的‘零阻力’效应。该设备奖用于高温(200oK)下显示迈斯纳效应的超导粒子的阻性转变温度测量。

Evidence of traces of superconductivity at temperatures as high as 292oK has been reported in the rare earth-barium-copper oxides by several groups around the world. Isolation, identification and characterization of these high transition temperature (Tc200oK) microscopic superconducting regions are necessary to lead to the synthesis of a bulk high transition temperature superconductor. The PI and his colleagues at Colorado State University have developed a technique that uses the Meissner effect to isolate the high transition temperature small particles. However, it is essential to demonstrate the 'zero resistance' effect on the isolated particles as a confirmatory test. This equipment award is for resistive transition temperature measurement of superconductive particles showing Meissner effect at high temperatures (200oK).