Valleytronics of Molybdenum disulfide


Due to the lack of spatial inversion symmetry, odd-layer MoS2 is a promising material for valleytronics because both the CBM and VBM have two energy-degenerate valleys at the corners of the first Brillouin zone, providing an exciting opportunity to store the information of 0s and 1s at different discrete values of the crystal momentum. The Berry curvature is even under spatial inversion (P) and odd under time reversal (T); the valley Hall effect cannot survive when both P and T symmetries are present. Circularly polarized lights were used to break the T symmetry in atomically thin transition-metal dichalcogenides to excite the valley Hall effect in specific valleys. In monolayer MoS2, the T and mirror symmetries lock the spin and valley indices of the sub-bands split by the spin-orbit couplings, both flipped under T; the spin conservation suppresses the inter-valley scattering. Therefore, monolayer MoS2 has been deemed an ideal platform for realizing the intrinsic valley Hall effect without extrinsic symmetry breaking. MoS2 also possesses mechanical strength and electrical conductivity and can emit light, opening possible applications such as photodetectors. MoS2 has been investigated as a component of photoelectrochemical (e.g., for photocatalytic hydrogen production) applications and for microelectronics applications. Under an electric field, MoS2 monolayers have been found to superconduct at temperatures below 9.4 K. If you are looking for high quality, high purity, and cost-effective Molybdenum disulfide or require the latest price of Molybdenum disulfide, please feel free to email contact mis-asia.

Inquiry us

Our Latest Products

CAS No. 557-05-1 40% Water-based Zinc Stearate Zinc Stearate Emulsion

Product DescriptionProduct Description Description of zinc stearate emulsionZinc stearate emulsion is easy to disperse in water, has ultra-fineness, good dispersion compatibility. Zinc stearate emulsion has the characteristics of lubricating and deli...…

China factory cheapest price lightweight concrete wall panel making machine large hydraulic cement foaming machine equipment

Product performance of TR-40 Cement Foaming Machine1. The shell is made of high-strength precision thickened steel plate, painted twice, which is durable.2. The slurry output is uniform and stable, the density of the foam concrete finished product i...…

TR30 huge CLC concrete foam generator cement foaming machine Integrated machine for pouring light steel keel and structural wall

Company Profile Luoyang Tongrun Info Technology Co., Ltd. is committed to technology development, applications of nanotechnology and new material industries, with professional experience in the nano-technology research and developmen...…

0086-0379-64280201 skype whatsapp