e/Negative differential conductivity

Information
has gloss	eng: Negative differential conductivity (NDC) is a nonlinear electrical phenomenon. If J is not a monotonic function of E at some values of E, the conductivity will be negative: \sigma=\fracdJ}dE}<0and negative differential conductivity is experienced; that is, in some electric field, the current density decreases as the electric field strength is increased.
lexicalization	eng: negative differential conductivity
instance of	c/Electronics terms