But is it really a memristor? The wikipedia article [1] quoted elsewhere says the memristor deals with charge and flux, whereas the article speaks of voltage and current (and some memory effect in the relation between V and I). I don't think any resistor with a memory effect should be called a memristor just like that.
[1] https://en.wikipedia.org/wiki/Memristor#The_memristor_as_a_f...