Orbital Symmetry and the Optical Response of Single-Layer MX Monochalcogenides

Nano Letters
Gabriel AntoniusSteven G Louie

Abstract

We show that the absorption spectra of single-layer GaSe and GaTe in the hexagonal phase feature exciton peaks with distinct polarization selectivity. We investigate these distinct features from first-principles calculations using the GW-BSE formalism. We show that, because of the symmetry of the bands under in-plane mirror symmetry, the bound exciton states selectively couple to either in-plane or out-of-plane polarization of the light. In particular, for a p-polarized light absorption experiment, the absorption peaks of the hydrogenic s-like excitons emerge at large angle of incidence, while the overall absorbance reduces over the rest of the spectrum.

References

Oct 15, 1986·Physical Review. B, Condensed Matter·M S Hybertsen, S G Louie
Oct 28, 1996·Physical Review Letters·J P PerdewM Ernzerhof
Mar 5, 2004·Physical Review Letters·Catalin D SpataruSteven G Louie
May 10, 2005·Science·Feng WangTony F Heinz
Feb 21, 2006·Physical Review Letters·B ArnaudM Alouani
Jan 15, 2011·Physical Review Letters·Kin Fai MakTony F Heinz
Feb 1, 2011·Nature Nanotechnology·B RadisavljevicA Kis
Sep 30, 2009·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Paolo GiannozziRenata M Wentzcovitch
Nov 15, 2011·ACS Nano·Branimir RadisavljevicAndras Kis
Jun 8, 2012·Nature Communications·Ting CaoJi Feng
Jun 9, 2012·Advanced Materials·Dattatray J LateVinayak P Dravid
Jun 19, 2012·Nature Nanotechnology·Kin Fai MakTony F Heinz
Nov 8, 2012·Nature Nanotechnology·Qing Hua WangMichael S Strano
Dec 4, 2012·Nature Materials·Kin Fai MakJie Shan
Jun 5, 2013·Nano Letters·Sidong LeiPulickel M Ajayan
Jul 28, 2013·Nature·A K Geim, I V Grigorieva
Dec 10, 2013·Physical Review Letters·Diana Y QiuSteven G Louie
Aug 30, 2014·Physical Review Letters·Alexey ChernikovTony F Heinz
Mar 19, 2015·Scientific Reports·Bairen ZhuXiaodong Cui
Mar 27, 2015·Nanoscale·Zhenxing WangJun He
Jul 22, 2015·Physical Review Letters·Ting CaoSteven G Louie
Nov 1, 2016·Nature Nanotechnology·Likai LiFeng Wang

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Citations

Sep 4, 2019·Nature Communications·Mauro Brotons-GisbertBrian D Gerardot
Sep 7, 2019·Physical Review Letters·J J Esteve-ParedesJ J Palacios
Oct 19, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Cuilian WenZhimei Sun
Jun 23, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Hieu T Nguyen-TruongMing-Fa Lin
Jan 12, 2022·The Journal of Physical Chemistry Letters·Nanshu LiuJijun Zhao

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