Transport Characteristics of BSCCO (2223) Superconducting Wires: From the Macroscopic to the Atomic Scale

BSCCO (2223) 超导线材的输运特性：从宏观到原子尺度

• 批准号: 9503877
• 负责人: Nigel Browning
• 金额: $ 20.73万
• 依托单位: University of Illinois at Chicago
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-08-01 至 1998-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9503877&HistoricalAwards=false
• 关键词: Transport; Characteristics; BSCCO; 2223; Superconducting

9503877 Browning The aim of this project is to link the macroscopic electromagnetic performance of Ag sheathed Bi(Pb)SrCaCuO (2223) tapes to the atomic and electronic structure of their defects. Low-temperature scanning electron microscopy (LTSEM) will be used to locate the presence of weak-link behavior. Using STEM & EELS techniques correlation of the local hole concentration with the atomic structure on a scale below the superconducting coherence length will be made. The wealth of spectroscopic data on carrier concentrations and doping effects in this material will be applied on a local scale to determine the actual microscopic origins of tape performance. In turn, the substantial technical expertise of the industrial tape supplier will enable the defect content to be tailored for enhanced tape performance. %%% The proposed studies will aim to link the macroscopic electromagnetic performance of silver sheathed bismuth superconductor tapes to the atomic and electronic structure of their defects.

小行星9503877布朗宁 本计画的目的是将Ag包覆Bi（Pb）SrCaCuO（2223）超导带材的宏观电磁性能与其缺陷的原子和电子结构联系起来。 将使用低温扫描电子显微镜（LTSEM）来定位弱连接行为的存在。 利用STEM EELS技术，将在超导相干长度以下的尺度上进行局部空穴浓度与原子结构的相关。 丰富的光谱数据的载体浓度和掺杂效应，在这种材料将被应用在一个本地规模，以确定实际的微观来源的磁带性能。 反过来，工业胶带供应商的大量技术专长将使缺陷内容能够针对增强的胶带性能进行定制。 拟议的研究将旨在将银护套铋超导带材的宏观电磁性能与其缺陷的原子和电子结构联系起来。