تقرير
Scanning superconducting quantum interference device on a tip for magnetic imaging of nanoscale phenomena
| العنوان: | Scanning superconducting quantum interference device on a tip for magnetic imaging of nanoscale phenomena |
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| المؤلفون: | Finkler, A., Vasyukov, D., Segev, Y., Ne'eman, L., Lachman, E. O., Rappaport, M. L., Myasoedov, Y., Zeldov, E., Huber, M. E. |
| المصدر: | Rev. Sci. Instrum. 83, 073702 (2012) |
| سنة النشر: | 2012 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity, Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | We describe a new type of scanning probe microscope based on a superconducting quantum interference device (SQUID) that resides on the apex of a sharp tip. The SQUID-on-tip is glued to a quartz tuning fork which allows scanning at a tip-sample separation of a few nm. The magnetic flux sensitivity of the SQUID is 1.8 {\mu}_0/Hz^{1/2} and the spatial resolution is about 200 nm, which can be further improved. This combination of high sensitivity, spatial resolution, bandwidth, and the very close proximity to the sample provides a powerful tool for study of dynamic magnetic phenomena on the nanoscale. The potential of the SQUID-on-tip microscope is demonstrated by imaging of the vortex lattice and of the local AC magnetic response in superconductors. Comment: 10 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1063/1.4731656 |
| URL الوصول: | http://arxiv.org/abs/1206.2853 |
| رقم الأكسشن: | edsarx.1206.2853 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1063/1.4731656 |
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