Current-to-Voltage Conversion with Integrated Quantum Hall Resistors
Current-to-Voltage Conversion with Integrated Quantum Hall Resistors
复制标题
使用集成量子霍尔电阻进行电流电压转换
DOI：
10.1109/cpem49742.2020.9191697
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Kaneko Nobu-Hisa
中科院分区：
文献类型：
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作者：
Chae Dong-Hun;Kim Mun-Seog;Kim Wan-Seop;Oe Takehiko;Kaneko Nobu-Hisa
我们报告的电流-电压转换与不变的1 M Ω量子化霍尔阵列电阻。在由电池供电的齐纳基准电压源、稳定的1 M Ω组合电阻基准电压源和1 M Ω霍尔阵列串联连接时，电路中的输入电流和通过阵列的电流由电位法确定。在1 μA时，上述两个电流的相对测量不确定度为107分之一。这个简单的实验表明，直接与普朗克常数h和基本电荷e相关的免校准精密电流测量可以通过霍尔阵列与基于约瑟夫森效应的量子电压计相结合来执行。
We report on current-to-voltage conversion with an invariant 1 M Ω quantized Hall array resistance. In a series connection of a battery-operated Zener voltage reference, a stable 1 M Ω combination resistance reference, and the 1 M Ω Hall array, the input current in the circuit and the current through the array are determined by a potentiometric method. The above two currents coincide with each other down to the relative measurement uncertainty of a part in 107at 1 μA. This simple experiment shows that calibration-free precision current measurement, directly linked to the Planck constant h and the elementary charge e, can be performed by a Hall array combined with a Josephson effect-based quantum voltmeter.