MIT Lincoln Laboratory, 244 Wood Street, Lexington, MA, 02421, USA.
Department of Physics, Harvard University, 11 Oxford Street, Cambridge, MA, 02138, USA.
Small. 2018 Sep;14(38):e1801483. doi: 10.1002/smll.201801483. Epub 2018 Aug 13.
A lack of inversion symmetry coupled with the presence of time-reversal symmetry endows 2D transition metal dichalcogenides with individually addressable valleys in momentum space at the K and K' points in the first Brillouin zone. This valley addressability opens up the possibility of using the momentum state of electrons, holes, or excitons as a completely new paradigm in information processing. The opportunities and challenges associated with manipulation of the valley degree of freedom for practical quantum and classical information processing applications were analyzed during the 2017 Workshop on Valleytronic Materials, Architectures, and Devices; this Review presents the major findings of the workshop.
缺乏反转对称加上时间反演对称赋予二维过渡金属二硫属化物在第一布里渊区的 K 和 K'点在动量空间中具有可单独寻址的谷。这种谷可寻址性为使用电子、空穴或激子的动量状态作为信息处理的全新范例开辟了可能性。在 2017 年关于谷电子材料、架构和器件的研讨会上分析了用于实际量子和经典信息处理应用的谷自由度的操控的机会和挑战；本综述介绍了研讨会的主要发现。
