Scientists created high temperature superconducting nanowire

21 September 2009

Researchers at California Institute of Technology have first time created an array of high temperature superconducting nanowires that could lead to the development of many energy efficient electronic and electrical devices. The research finding published recently in Nano Letters indicates that the high temperature superconducting nanowires can drastically change future nanotechnologies.

Although researchers around the world are working in high temperature conductivity since long time, high temperature superconducting nanowire is created first time by Heath and colleagues at California Institute of Technology using a compound of copper oxide known as YBCO. 400 nanowire arrays of YBCO were fabricated and all were joined perpendicularly so that the electrical properties of these nanowires could be measured.

Each nanowire was as thin as 10 nanometer in dia and 200 micrometer in length and researchers found that the critical temperature of these nanowires is 50K, quite above than the temperature of liquid nitrogen below which every metal behaves superconductor. The broader superconducting and resistive behavior shown by these nanowires could possibly lead to their use for superconducting quantum interface devices or SQUIDs.

Although there are many challenges to reproduce the same material again so that the physical and electronic features of the nanaowires remains same, researchers are optimistic to use and commercialize the technology for future emerging nanotechnology applications.

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