Figure 2: MFE on the current as a function of the applied magnetic field.
From: Tuning organic magnetoresistance in polymer-fullerene blends by controlling spin reaction pathways
(a) The MFE for a 1 wt.% MDMO-PPV1−x−PCBMx blend at 3.0 V. The solid line is a fit using the empirical lineshape (see Methods section), where the LFE and HFE contributions are separately depicted. The magnitude of LFE and HFE and their corresponding line widths Bhf and BHFE are also shown. (b) At low magnetic fields, on the order of a millitesla, an USFE appears which is also correctly described by the fit. (c) The MFE for a 50% blend at 1.1 V. Here the LFE and HFE have a different sign, and the line width of the HFE is much broader. (d) The MFE for a 80% blend at 1.1 V, showing a negative LFE and almost no HFE.
