The Influence of Energy Distribution on Organic Magnetoconductance

Organic materials usually have amorphous structures that cause complex energy distributions. Therefore, energy distribution is an important factor for the transport properties of organic devices and will affect their magnetoconductance. Under the effect of an external magnetic field and hyperfine interaction, we suggest a spin-dependent hopping mechanism to study the giant magnetoconductance observed in nonmagnetic organic devices. In our work, the calculated results are in good agreement with the experimental data. Moreover, we compared the results of a Gaussian distribution with that of a uniform distribution and analyzed the effect of these different distributions on the transport of the system. Our work will be helpful for understanding transport properties and magnetoconductance of organic devices.