Figure 3.

Generating MR by thermally activated conduction through molecular orbitals. (a) Schematic energy diagram of resonant transmission through molecular orbitals in a chiral component (molecule). The LUMO and HOMO levels and the bias-dependent electrochemical potentials are labeled, and the energy- and bias-dependent Fermi–Dirac function F(ϵ,μ) is sketched in blue. (b and c) Example I–V curves and MR (inset) due to the resonant transmission through the LUMO (b) and the HOMO (c), for the same device geometry as in Figure 2a but with the transmission of the FMTJ set constant. The chiral molecule is assumed to favor the transmission of electrons with spin parallel to momentum.