Graphing the V vs I relationship of diode using Square wave

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The discussion centers on understanding the V vs I relationship of a diode, particularly when using a square wave input. Participants express confusion about the graph produced in XY mode for a zener diode, questioning the significance of the data points displayed. Key concepts include the behavior of diodes under different voltage conditions, particularly the exponential conduction starting around 0.5-0.7 V and the limited conduction below the breakdown region. The conversation highlights the need for clarity on interpreting the graphical data related to diode characteristics. Overall, the thread seeks to clarify the relationship between voltage and current in diodes using specific waveforms.
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Homework Statement


I am having trouble understanding what this picture is showing.
UUMRkN9.png
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I know that in the case of a sine wave, the voltage below zero will not conduct much if it does not drop past the breakdown region. On the other hand, it will start to conduct and grow exponentially at about .5-.7 V. However, when I tried the XY(I vs V) mode for a zener diode this is the graph I got. What is going on at each dot?

Homework Equations


I = Io (e^((qV)/(nkT)) -1)
k = 1.38 *10 ^-23
 
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