PMID: 22587273May 17, 2012Paper

Structure-dependent Fano resonances in the infrared spectra of phonons in few-layer graphene

Physical Review Letters
Zhiqiang LiTony F Heinz

Abstract

The in-plane optical phonons around 200 meV in few-layer graphene are investigated utilizing infrared absorption spectroscopy. The phonon spectra exhibit unusual asymmetric features characteristic of Fano resonances, which depend critically on the layer thickness and stacking order of the sample. The phonon intensities in samples with rhombohedral (ABC) stacking are significantly higher than those with Bernal (AB) stacking. These observations reflect the strong coupling between phonons and interband electronic transitions in these systems and the distinctive variation in the joint density of electronic states in samples of differing thickness and stacking order.

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Citations

Feb 8, 2016·The Journal of Chemical Physics·Takanori KoitayaJun Yoshinobu
Oct 25, 2013·Nature Communications·G CoslovichR A Kaindl
Mar 24, 2016·Journal of Physics. Condensed Matter : an Institute of Physics Journal·S V DordevicL C Tung
Jan 26, 2018·Chemical Society Reviews·Jiang-Bin WuPing-Heng Tan
May 14, 2017·Scientific Reports·Rong-Bin ChenMing-Fa Lin
Sep 26, 2012·Physical Review Letters·François LapointePatrick Desjardins
May 21, 2013·Physical Review Letters·Chun Hung LuiTony F Heinz
Apr 24, 2021·Physical Review Letters·Qiaoxia XingHugen Yan
Jul 16, 2014·Nano Letters·Chun Hung LuiRui He
Jul 16, 2014·Nano Letters·Hugen YanPhaedon Avouris
Jan 23, 2019·Nano Letters·Francisco C B MaiaRaul O Freitas

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