Angular momentum radiation from current-carrying molecular junctions

被引：18
|
作者：
Zhang, Zu-Quan [1 ]
Lu, Jing-Tao [2 ,3 ]
Wang, Jian-Sheng [1 ]
机构：
[1] Natl Univ Singapore, Dept Phys, Singapore 117551, Singapore
[2] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China
[3] Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China
来源：
PHYSICAL REVIEW B | 2020年 / 101卷 / 16期
基金：
中国国家自然科学基金;
关键词：
SINGLE-MOLECULE;
D O I：
10.1103/PhysRevB.101.161406
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We consider the radiation of angular momentum (AM) from current-carrying molecular junctions. Using the nonequilibrium Green's function method, we derive a convenient formula for the AM radiation and apply it to a prototypical benzene molecule junction. We discuss the selection rules for inelastic transitions between the molecular angular momentum eigenstates due to a sixfold rotational symmetry. Our study provides important insights into the generation of light with AM from DC-biased molecular junctions.
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页数：5
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