Field-modulated low-energy electronic and optical properties of armchair silicene nanoribbons

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• 作者：Feng-Lin Shyu ^{fl.shyu@msa.hinet.net}
• 关键词：Silicene nanoribbon ; Tight-binding model ; Electronic property ; Optical property
• 刊名：Physica E: Low-dimensional Systems and Nanostructures
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：85
• 期：Complete
• 页码：117-124
• 全文大小：3227 K
• 卷排序：85

文摘

Electronic and optical properties of ASiNRs in electric fields are studied in TB model. Fz monotonically increases absorption frequency and strength. Fx makes energy bands oscillatory and destroys spin degeneracy resulting in richer optical spectra. Modulation of optical absorption strongly depends on field direction and ribbon's geometry.