Valleytronics: Opportunities, Challenges, and Paths Forward.
Valleytronics: Opportunities, Challenges, and Paths Forward.
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DOI：
10.1002/smll.201801483
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发表时间：
2018-08
期刊：
影响因子：
13.3
通讯作者：
S. Vitale;D. Nezich;J. Varghese;P. Kim;N. Gedik;P. Jarillo-Herrero;Di Xiao;M. Rothschild
中科院分区：
文献类型：
--
作者：
S. Vitale;D. Nezich;J. Varghese;P. Kim;N. Gedik;P. Jarillo-Herrero;Di Xiao;M. Rothschild
反演对称性的缺乏加上时间反转对称性的存在，使得二维过渡金属二硫族化合物在第一布里渊区K和K′点的动量空间中具有单独可寻址的谷。这种谷可寻址性开辟了利用电子、空穴或激子的动量态作为信息处理的全新范例的可能性。在2017年谷电子材料、体系结构和器件研讨会上，分析了与实际量子和经典信息处理应用中谷自由度操纵相关的机遇和挑战；这篇综述介绍了研讨会的主要发现。
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.