Cage M E
National Institute of Standards and Technology, Gaithersburg, MD 20899-0001.
J Res Natl Inst Stand Technol. 1993 May-Jun;98(3):361-373. doi: 10.6028/jres.098.028.
When large currents are passed through a high-quality quantized Hall resistance device the voltage drop along the device is observed to assume discrete, quantized states if the voltage is plotted versus the magnetic field. These quantized dissipative voltage states are interpreted as occurring when electrons are excited to higher Landau levels and then return to the original Landau level. The quantization is found to be, in general, both a function of magnetic field and current. Consequently, it can be more difficult to verify and determine dissipative voltage quantization than previously suspected.
当大电流通过高质量的量子化霍尔电阻器件时,如果将电压与磁场作图,会观察到沿该器件的电压降呈现离散的量子化状态。这些量子化的耗散电压状态被解释为电子被激发到更高的朗道能级然后回到原始朗道能级时发生的情况。一般发现,这种量子化既是磁场的函数也是电流的函数。因此,验证和确定耗散电压量子化可能比之前认为的更困难。