Magnetic control of valley and spin degrees of freedom via magnetotransport in n-type monolayer MoS2.
We study the quantum magnetotransport properties at low temperature for n-type monolayer MoS2 under a perpendicular magnetic field within the linear response theory. By using Kubo formula, it is predicted that the valley- and spin-resolved Hall conductance obeys the same rule as that for conventional fermions. However, the first Hall plateau and the longitudinal charge conductance in low energies are fully valley/spin-polarized, which may produce a pure valley/spin current. In the low magnetic field limit, importantly, the resistance as a function of field is in good agreement with the available experiment data. These interesting findings can be tested experimentally and may be useful for valleytronic and spintronic applications.
Department of Physics and Key Laboratory for Low-Dimensional Structures and Quantum Manipulation (Ministry of Education), Hunan Normal University, Changsha 410081, People's Republic of China.
Xiaoying
X
Zhou
Yiman
Y
Liu
Ma
M
Zhou
Dongsheng
D
Tang
Guanghui
G
Zhou