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arXiv 1302.0680cond-mat.supr-con
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杂散磁场对超导薄膜损耗的控制

Control of dissipation in superconducting films by magnetic stray fields

A. Gomez, D. A. Gilbert, E. M. Gonzalez, Kai Liu, J. L. Vicent

摘要:

硅衬底上的混合超导/磁性纳米结构已被构建为具有相同的物理尺寸但不同的磁性配置。通过构建基于具有面内、面外和涡旋状态磁配置的Co-dots的阵列,杂散场被系统地调谐。通过减小(增加)杂散磁场,可以使超导体混合态的损耗减小(增加)几个数量级。此外,在整个阵列上的杂散场的排序有助于抑制耗散并增强可重构性效应,从而增加耗散最小值的数量。

英文摘要:

Hybrid superconducting/magnetic nanostructures on Si substrates have been built with identical physical dimensions but different magnetic configurations. By constructing arrays based on Co-dots with in-plane, out-of-plane, and vortex state magnetic configurations, the stray fields are systematically tuned. Dissipation in the mixed state of superconductors can be decreased (increased) by several orders of magnitude by decreasing (increasing) the stray magnetic fields. Furthermore, ordering of the stray fields over the entire array helps to suppress dissipation and enhance commensurability effects increasing the number of dissipation minima.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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