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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications & Review Papers >Real-Time Imaging of Vortex-Antivortex Annihilation in Bi_2Sr_2CaCu_2O_(8+δ) Single Crystals by Low Temperature Scanning Hall Probe Microscopy
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Real-Time Imaging of Vortex-Antivortex Annihilation in Bi_2Sr_2CaCu_2O_(8+δ) Single Crystals by Low Temperature Scanning Hall Probe Microscopy

机译:低温扫描霍尔探针显微镜对Bi_2Sr_2CaCu_2O_(8 +δ)单晶中涡旋-反涡vor灭的实时成像

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摘要

Vortices in superconductors play an important role in operating limits and applications of the superconductors. Scanning Hall probe microscopes have proven themselves to be quantitative and non-invasive tools for investigating magnetic samples down to 50 nm scale. Penetration of vortices in high quality single crystal Bi_2Sr_2CaCu_2O_(8+δ) superconductor has been studied in real-time with single vortex resolution at 77 K using a low temperature scanning Hall probe microscope (LT-SHPM). Vortices have been observed to be annihilated by the antivortices in small M-H loops.
机译:超导体中的涡旋在超导体的工作极限和应用中起着重要作用。扫描霍尔探针显微镜已被证明是定量和非侵入性工具,可用于调查低至50 nm规模的磁性样品。利用低温扫描霍尔探针显微镜(LT-SHPM),以77 K的单涡旋分辨率实时研究了高质量单晶Bi_2Sr_2CaCu_2O_(8 +δ)超导体中的涡旋渗透。已经观察到在小的M-H回路中涡旋会被反涡旋消除。

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