Charge-transfer polaron induced negative differential resistance and giant magnetoresistance in organic spintronics: A Su-Schrieffer-Heeger model study

TL;DR

This study uses a combined SSH model and Green's function approach to explore negative differential resistance and giant magnetoresistance in organic spintronics, revealing potential for significant magnetic response at low temperatures.

Contribution

It introduces a theoretical framework linking charge-transfer polarons to negative differential resistance and giant magnetoresistance in organic spintronic devices.

Findings

Negative differential resistance observed at low temperature.

Giant magnetoresistance exceeding 300% predicted.

Self-doping mechanism explains the resistance effects.

Abstract

Combining the Su-Schrieffer-Heeger model and the non-equilibrium Green's function formalism, we investigate the negative differential resistance effect in organic spintronics at low temperature and interprete it with a self-doping picture. A giant negative magnetoresistance exceeding 300% is theoretically predicted as the results of the negative differential resistance effects.