Plasmon reflection reveals local electronic properties of natural graphene wrinkles<xref rid="cpb_28_11_117302fn1" ref-type="fn">*</xref><fn id="cpb_28_11_117302fn1"><label>*</label><p>Project supported by the National Key Research and Development Program of China (Grant No. 2016YFA0203500), the National Natural Science Foundation of China (Grant No. 11874407), and Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB 30000000).</p></fn>

Plasmon reflection reveals local electronic properties of natural graphene wrinkles**

Project supported by the National Key Research and Development Program of China (Grant No. 2016YFA0203500), the National Natural Science Foundation of China (Grant No. 11874407), and Strategic Priority Research Program of Chinese Academy of Sciences (Grant No. XDB 30000000).

Chen Runkun¹, Yang Cui¹, Jia Yuping^{2, 3}, Guo Liwei^{4, 5, 6, †}, Chen Jianing^{1, 6, ‡}

The Raman spectroscopy of epitaxial monolayer graphene on SiC substrate. (a) Raman spectra of graphene and SiC substrate, respectively. (b) Raman spectrum of monolayer graphene on SiC after subtracting the SiC background. The inset is Lorentz fitting of the 2D band.