Magnetotransport in a zigzag monolayer MoS2 nanoribbon with ferromagnetic electrodes

Abstract

In this research, using the three-band tight-binding model combined with a non-equilibrium Green's function technique, spin-dependent electron transport was investigated in the quantum structure of zigzag monolayer molybdenum disulfide with ferromagnetic electrodes. It was shown that in parallel configurations, the conductance exhibited a quantized oscillating phenomenon, while in the antiparallel configurations with increasing magnetization, the conductance showed a zero platform in a large-energy region. We observed a giant magnetoresistance effect. Moreover, the length of the central part of the structure had a certain influence on the magnetoresistance ratio. It was found that as the length of the middle region increased, the magnetoresistance ratio decreased gradually. The results not only extended our understanding of novel electronic structures of monolayer MoS2 but also provided the possibility for the technological applications of spintronics device.