Topological, Valleytronic, and Optical Properties of Monolayer PbS

Wenhui Wan; Yugui Yao; Liangfeng Sun; Cheng Cheng Liu; Fan Zhang

doi:10.1002/adma.201604788

Topological, Valleytronic, and Optical Properties of Monolayer PbS

Wenhui Wan, Yugui Yao^*, Liangfeng Sun, Cheng Cheng Liu, Fan Zhang

^*此作品的通讯作者

物理学院

科研成果: 期刊稿件 › 文章 › 同行评审

28 引用（Scopus）

摘要

Researchers performed first-principle calculations using the more accurate Heyd–Scuseria–Ernzerhof (HSE) hybrid functional to examine the band structures of lead sulfide (PbS) few layers, with a focus on the monolayer. They revealed that the band gaps of few layers exhibited even–odd layer-dependent oscillations without band inversions. They also demonstrated that the uniaxial and biaxial compressive strains can tune the monolayer to a 2D topological insulator (TI) and topological crystalline insulators (TCI).

源语言	英语
文章编号	1604788
期刊	Advanced Materials
卷	29
期	10
DOI	https://doi.org/10.1002/adma.201604788
出版状态	已出版 - 14 3月 2017

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Wan, W., Yao, Y., Sun, L., Liu, C. C., & Zhang, F. (2017). Topological, Valleytronic, and Optical Properties of Monolayer PbS. Advanced Materials, 29(10), 文章 1604788. https://doi.org/10.1002/adma.201604788

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abstract = "Researchers performed first-principle calculations using the more accurate Heyd–Scuseria–Ernzerhof (HSE) hybrid functional to examine the band structures of lead sulfide (PbS) few layers, with a focus on the monolayer. They revealed that the band gaps of few layers exhibited even–odd layer-dependent oscillations without band inversions. They also demonstrated that the uniaxial and biaxial compressive strains can tune the monolayer to a 2D topological insulator (TI) and topological crystalline insulators (TCI).",

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author = "Wenhui Wan and Yugui Yao and Liangfeng Sun and Liu, {Cheng Cheng} and Fan Zhang",

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AU - Wan, Wenhui

AU - Yao, Yugui

AU - Sun, Liangfeng

AU - Liu, Cheng Cheng

AU - Zhang, Fan

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AB - Researchers performed first-principle calculations using the more accurate Heyd–Scuseria–Ernzerhof (HSE) hybrid functional to examine the band structures of lead sulfide (PbS) few layers, with a focus on the monolayer. They revealed that the band gaps of few layers exhibited even–odd layer-dependent oscillations without band inversions. They also demonstrated that the uniaxial and biaxial compressive strains can tune the monolayer to a 2D topological insulator (TI) and topological crystalline insulators (TCI).

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Topological, Valleytronic, and Optical Properties of Monolayer PbS

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