Highly Confined Phonon Polaritons in Monolayers of Perovskite Oxides.

Nano Letters
Dominik M Juraschek, Prineha Narang

Abstract

Two-dimensional (2D) materials are able to strongly confine light hybridized with collective excitations of atoms, enabling electric-field enhancements and novel spectroscopic applications. Recently, freestanding monolayers of perovskite oxides have been synthesized, which possess highly infrared-active phonon modes and a complex interplay of competing interactions. Here, we show that this new class of 2D materials exhibits highly confined phonon polaritons by evaluating central figures of merit for phonon polaritons in the tetragonal phases of the 2D perovskites SrTiO3, KTaO3, and LiNbO3, using density functional theory calculations. Specifically, we compute the 2D phonon-polariton dispersions, the propagation-quality, confinement, and deceleration factors, and we show that they are comparable to those found in the prototypical 2D dielectric hexagonal boron nitride. Our results suggest that monolayers of perovskite oxides are promising candidates for polaritonic platforms that enable new possibilities in terms of tunability and spectral ranges.

References

Sep 30, 2009·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Paolo GiannozziRenata M Wentzcovitch
Oct 18, 2014·Nature Communications·Joshua D CaldwellKostya S Novoselov
Dec 23, 2014·Nature Materials·Achim WoessnerFrank H L Koppens
Jun 23, 2015·Nature Nanotechnology·S DaiD N Basov
Jul 16, 2016·Science·Nicholas RiveraMarin Soljačić
Jul 30, 2016·Science·K S NovoselovA H Castro Neto
Oct 16, 2016·Science·D N BasovF J García de Abajo
Nov 29, 2016·Nature Materials·Tony LowFrank Koppens
May 19, 2017·Nano Letters·Thibault SohierNicola Marzari
Oct 25, 2017·Journal of Physics. Condensed Matter : an Institute of Physics Journal·P GiannozziS Baroni
Nov 24, 2017·Science Advances·Seung Sae HongHarold Y Hwang
Dec 13, 2017·Nano Letters·Jinlian LuHongjun Xiang
Dec 14, 2017·Proceedings of the National Academy of Sciences of the United States of America·Nicholas RiveraMarin Soljačić
Jan 2, 2019·Nature Materials·Awadhesh NarayanNicola A Spaldin
Mar 21, 2019·Nano Letters·Nicholas RiveraPrineha Narang
Apr 30, 2019·Science Advances·Kaveh AhadiSusanne Stemmer
May 9, 2019·Nature Nanotechnology·M GibertiniK S Novoselov
Jun 15, 2019·Science·T F NovaA Cavalleri
Jul 30, 2019·Advanced Materials·Siyuan DaiDimitri N Basov
Nov 28, 2019·Advanced Materials·Siyuan LiXiaosheng Fang
Jan 24, 2020·ACS Applied Materials & Interfaces·Yoan BourlierYves Dumont
Mar 29, 2020·Physical Review Letters·Xiaokang LiKamran Behnia
Apr 4, 2020·Science·Seung Sae HongHarold Y Hwang
Jun 21, 2020·Nature Communications·Ruijuan XuHarold Y Hwang
Jul 18, 2020·Physical Review Letters·Junting ZhangXiaomei Lu
Mar 11, 2021·Nano Letters·Varun HarbolaHarold Y Hwang
Jul 29, 2021·Proceedings of the National Academy of Sciences of the United States of America·Simone LatiniAngel Rubio

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