5. There is a special type of diode based on a truly quantum phenomenon, i.e. tunneling. The device is also known as Esaki diode after the inventor Leo Esaki, who received the Nobel Prize in Physics in 1973 for the achievement. A typical I-V characteristic of the diode is given as follows. 0.008 0.006 0.004 0.002 Anode ☑ Cathode The device is useful because of the behavior between 1 and 3 V. a. Find the approximate resistance of the Esaki diode around this region. b. In order to utilize this special property, we must properly "bias" the diode. For the following equivalent circuit, what is the applied DC bias Vin that produces two stable operating points? What is the corresponding Vd for the bias? Vin R=2500 www vd