论文标题
隧道连接处的频率无关电压振幅
Frequency-independent voltage amplitude across a tunnel junction
论文作者
论文摘要
射频（RF）扫描隧道显微镜最近已采用单原子自旋共振等方法。这种方法受益于整个隧道连接的频率无关的RF电压振幅，这是由于RF衰减在传输线中的强频率依赖性而挑战。迄今为止，已经有两种针对RF振幅的校准方法。在本说明中，我们提出了一种替代方法，可以在整个隧道交界处实现独立于频率的RF电压幅度并显示该校准的结果。提出的过程适用于可以将RF电压输送到隧道交界处的设备。
Radio-frequency (rf) scanning tunneling microscopy has recently been advanced to methods such as single-atom spin resonance. Such methods benefit from a frequency-independent rf voltage amplitude across the tunnel junction, which is challenging to achieve due to the strong frequency dependence of the rf attenuation in a transmission line. Two calibration methods for the rf amplitude have been reported to date. In this Note, we present an alternative method to achieve a frequency-independent rf voltage amplitude across the tunnel junction and show the results of this calibration. The presented procedure is applicable to devices that can deliver rf voltage to a tunnel junction.
