Sun, Jun 16th, 2019

Spectroscopies in Novel Superconductors 2019


Recent Research Activities of Applied Superconductivity in China

Denver, Colorado
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In China, we have a complete research system in applied superconductivity. Because of the particular roles of superconducting technology in telecommunication, sensitive transducer, power and energy, maglev transportation, scientific & medical equipment and environmental protection etc., the research for applied superconductivity has been widely supported by the Chinese government, local governments, industry companies, research institutions and universities. In this presentation, we, on behalf of the Chinese colleagues, will report the recent research activities of applied superconductivity in China. In the last decade, China has achieved significant progress in applied superconductivity. For example in superconducting materials, the Western Superconducting Technologies Co. Ltd, founded in 2004, has become one of the most important companies to supply the NbTi and Nb3Sn materials for ITER project, and SAMRI Advanced Material can produce YBCO tape with length up to 1km, and a 10 m long SrKFeAs superconducting tape made at IEE-CAS has achieved Jc of 180A/mm2 @4.2K and 10 T. In the application for electronics, Zhongyi Superconductor is making HTS microwave filter subsystems for base station. Also, a HTS filter subsystem for satellite receiver front-end, developed by a team in IOP-CAS, has been in operation for over two years in orbit. Superconducting nanowire single-photon detector (SNSPD) developed by SIMIT-CAS have been successfully used in 200 km measurement device independent-quantum key distribution (MDI-QKD). Application researches on SQUIDs have been strengthened over the past years with a focus on magnetocardiography, geophysical exploration and ULF-MRI. In power and energy, IEE-CAS has built a demonstration system of a 10kV superconducting power substation, and a 360 m/10kA high Tc DC power cable was experimentally operated for an electrolyze workshop. The Innopower demonstrated a 220kV HTS fault current limiter in the transmission system. In superconducting magnet technology, a 7.0 T magnet for animal MRI has been developed by Tsinghua University and Hangzhou Biopharma Innovation Park Ltd., a superconducting magnet with high Tc insert coil made by IEE-CAS reach the field up to 20 T. Besides, a superconducting TOKAMAK experimental system (EAST) has been built by the Institute of Plasma Physics (IPP) of CAS.

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This talk from the Applied Superconductivity Conference 2016 provides a comprehensive review of research and development, as well as products, product development, and applications in China using superconductor materials, technology, and electronics.

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30 Years to High Temperature Superconductivity (HTS): Status and Perspectives

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The discovery of high-temperature superconductivity by Bednorz and Muller in 1986 inaugurated a new era for research, from both fundamental physics and application perspectives. With Tc routinely around 100 K (the record is 160 K) and Bc2 reaching into tens or even hundreds of Tesla, the technological significance of HTS appeared clear from the very beginning. However, scientists had to face many difficulties to develop these materials in a useful conductor form, and yet only three Bi2Sr2CaCu2O8-x, Bi2Sr2Ca2Cu3O10-x and REBa2Cu3O7-x (RE = rare earth) are available commercially. The grand challenges revolve around the complexity of making high Jc in polycrystalline materials, because of the intrinsic electronic anisotropy and of the great current blocking effects of randomly oriented grain boundaries. This review describes many aspects of the development and property evolution in HTS conductors together with the progress in practical applications. 

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Perspectives on 30 years of High Temperature Superconductivity. The aim of this presentation from the Applied Superconductivity Conference 2016, is to illustrate the close synergetic relationship between evolution of the material understanding and advancement in the superconductor technology.

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One HTS Josephson Junction – An Array of Applications: Has anything come from HTS devices in the last 30 years?

Denver, Colorado
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In this talk from the Applied Superconductivity Conference 2016, Cathy Foley from CSIRO provides a review of the advances in high temperature superconducting (HTS) electronic devices in the 30 years from 1986 to 2016, with a survey of applications and an outlook to the future.

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Low-energy High-performance Computing based on Superconducting Technology

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In this talk from the Applied Superconductivity Conference 2016, Prof. Nobuyuki Yoshikawa surveys all the innovative low power technologies and digital designs based on superconducting electronics that will enable high-efficiency supercomputer systems.

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Mon, Mar 18th, 2019

International Conference on Material Science & Engineering