McKendry J E, Allen C S, Critchley K, Górzny M L, Walton A S, Evans S D
School of Physics and Astronomy, University of Leeds, West Yorkshire, UK.
Nanotechnology. 2008 Feb 27;19(8):085201. doi: 10.1088/0957-4484/19/8/085201. Epub 2008 Feb 1.
We present an improved method for fabricating tungsten STM tips for measuring nanoscale objects using a multiprobe STM. The tips were prepared by a 'drop-off' technique combined with a magnetic field. For magnetic field strengths above 150 Oe the electrolyte was seen to rotate about the tungsten anode. This rotation reduced the adhesion of bubbles and led to a reduction in the cone angle of the tips produced. This property is advantageous for multiprobe measurements as it allows one to bring multiple tips into close proximity.
我们提出了一种改进的方法，用于制造用于使用多探针扫描隧道显微镜（STM）测量纳米级物体的钨STM探针。这些探针是通过“掉落”技术结合磁场制备的。当磁场强度高于150奥斯特时，可以看到电解液围绕钨阳极旋转。这种旋转减少了气泡的附着力，并导致所制备探针的锥角减小。这一特性对于多探针测量是有利的，因为它允许将多个探针靠近放置。
