Strong two-dimensional plasmon in Li-intercalated hexagonal boron-nitride film with low damping

Lončarić, Ivor and Rukelj, Zoran and Silkin, Vyacheslav M. and Despoja, Vito (2018) Strong two-dimensional plasmon in Li-intercalated hexagonal boron-nitride film with low damping. npj 2D Materials and Applications, 2 (1). p. 33. ISSN 2397-7132

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The field of plasmonics seeks to find materials with an intensive plasmon (large plasmon pole weight) with low Landau, phonon, and other losses (small decay width). In this paper, we propose a new class of materials that show exceptionally good plasmonic properties. These materials consist of van der Waals stacked “plasmon active” layers (atomically thin metallic layers) and “supporting” layers (atomically thin wide band gap insulating layers). One such material that can be experimentally realized—lithium intercalated hexagonal boron-nitride is studied in detail. We show that its 2D plasmon intensity is superior to the intensity of well-studied Dirac plasmon in heavy doped graphene, which is hard to achieve. We also propose a method for computationally very cheap, but accurate analysis of plasmon spectra in such materials, based on one band tight-binding approach and effective background dielectric function.

Item Type: Article
Keywords: plasmons, density functional theory
Date: 2018
Subjects: NATURAL SCIENCES > Physics
Additional Information: © The Author(s) 2018. s This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit Received: 23 March 2018. Revised: 9 August 2018 Accepted: 14 August 2018. Published online: 19 September 2018.
Divisions: Faculty of Science > Department of Physics
Project code: EK-H2020-692194, ZCI QuantixLie
Publisher: Springer Nature
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 08 Mar 2019 15:10
Last Modified: 08 Mar 2019 15:10

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