“School of Nano-Sciences”
Back to Papers HomeBack to Papers of School of Nano-Sciences
| Paper IPM / Nano-Sciences / 18254 |
|
||||
| Abstract: | |||||
|
We propose a hole-doped molybdenum disulfide (MoS2) superconducting spin valve (F/S/F) hybrid structure in which the Andreev reflection process is suppressed for all incoming electrons with determined chemical potentials in the ferromagnetic (F) region, and the cross-conductance in the right F region depends crucially on the configuration of magnetizations in the two F regions. We find, by using the scattering formalism, that the transport is mediated purely by the elastic electron cotunneling (CT) process in the parallel configuration and changes to the pure crossed Andreev reflection (CAR) process in the low-energy regime by reversing the direction of magnetization in the right F region. This suggests both valley and spin switch effects between the perfect elastic CT and perfect CAR processes and makes the nonlocal current fully valley and spin polarized inside the right F region, where the type of polarization can be changed by reversing the magnetization direction in the right F region. Moreover, we demonstrate long-range CT and CAR processes in the MoS2-based F/S/F structure in contrast to the corresponding gapped graphene structure.
Download TeX format |
|||||
| back to top | |||||
