Andrzej Karol Jonscher

Andrzej Karol Jonscher (13 July 1922 – 7 February 2005)[1] was a Polish-British physicist at Chelsea College and then Royal Holloway, University of London.

Although this scaling behaviour is observed across a tremendously wide range of systems, there is yet no consensus regarding the origins of such emergent dielectric responses.

However, there is no standard theoretical explanation about the reasons and mechanisms of the physical averagings leading to the emergence of "universal" response in macroscopic solid-state ionic conductors.

[2] Jonscher pioneered a mathematical explanation of an unusual phenomenon of negative capacitance in electronic devices.

[3] He explained the effect of negative capacitance in terms of non-monotonically decreasing transient current response under a step voltage excitation.