Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 10, Issue 11, Pages 7436-7438Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2010.2850
Keywords
Superconductivity; Freestanding; Nanofeature; Focused-Ion-Beam; Direct-Writing
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Funding
- Engineering and Physical Sciences Research Council [EP/H005544/1, EP/F035411/1, EP/G061939/1] Funding Source: researchfish
- EPSRC [EP/H005544/1, EP/G061939/1, EP/F035411/1] Funding Source: UKRI
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Freestanding tungsten composite nanofeatures were grown by focused-ion-beam-induced deposition with 1 pA ion beam current. The temperature dependent electrical measurements show that the flying nanoscale tungsten is conducting with a room temperature resistivity of 550 mu Omega cm. It is also superconducting with a T-c above 5.1 K and can be repeatedly thermally cycled. Our results suggest that FIB direct-writing of three-dimensional tungsten composites might be a potential approach to fabricate vertical nanodevices and mask-free superconducting devices.
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