memristor-hysterisis loop

[liyana_89]

i need help... i have this hysterisis loop, but i have no idea what data we can find from this graph...
what i know is, we can find Ron and Roff from the slope. but when i calculated from the slope, i did not get the same answer. :?:

 

[Garrison Gao]

Why you just estimate the resistance use the slope of the curve, for this instance, the Roff is about 10K Oham and Ron is about 300Oham

 

[liyana_89]

thank you for your reply.. i already do the same things. But i can't get the same value between calculation from slope and spice model. From the spice model, we used Roff 16kOhm and Ron 100Ohm... i need to prove that what from the graph is same with the spice model. i need some help regarding to this problem...

 

[erikl]

... From the spice model, we used Roff 16kOhm and Ron 100Ohm

I think SPICE extracts the gradient values exactly at the zero point. If you enlarge the hysteresis diagram to values between ±0.2V & ±60µA, you can estimate and approximately extract the following values:

Roff = 400mV / 33µA = 12kΩ
Ron = 20mV / 120µA = 167Ω

... which come rather close. SPICE still can do it more exactly, i.e. extraction closer to the zero point.

 

[liyana_89]

hi erikl..

i want to ask something... from this hysterisi loop, how can we know about the switching...
i have a hysteris loop from fabrication which is i got the data from fabrication member... i want to relate it with spice model..
can you help me...

 

[erikl]

Not my business, sorry. Try a G00GLE search! I found that the Linear Ion Drift model (Verilog-A) directly makes use of Roff, Ron.