Superconductivity in Tungsten-Carbide Nanowires Deposited from the Mixtures of W(CO)(6) and C14H10

作者：Dai Jun^*; Onomitsu Koji; Kometani Reo; Krockenberger Yoshiharu; Yamaguchi Hiroshi; Ishihara Sunao; Warisawa Shin'ichi

来源：Japanese Journal of Applied Physics, 2013, 52(7): UNSP 075001.

DOI：10.7567/JJAP.52.075001

• FIB-CVD
• Focused ion beam chemical vapor deposition
• Precursor ratios
• Superconducting structure

Tungsten-carbide (W-C) nanowires have been deposited by focused-ion-beam chemical vapor deposition (FIB-CVD). Mixtures of C14H10 and W(CO)(6) are used as precursors. For certain precursor ratios, our nanowires become superconducting with a T-c as high as 5.8 K. Also, freestanding W-C nano pillars were grown by FIB-CVD. The growth rate of the deposition from the mixture is at most 4.25 times higher than W(CO)(6) is used as the precursor. This growth rate greatly facilitates the fabrication of three-dimensional superconducting structures.

• 出版日期2013-7