In this paper, we showed that pseudo-magnetic field fluctuations present in crumpled graphene can induce significant intravalley scattering of charge carriers. We detected this by measuring the confocal Raman spectra of crumpled areas, where we observed an increase of the D′/D peak intensity ratio by up to a factor of 300. We reproduced our observations by numerical calculation of the double resonant Raman spectra.
A long story finally resulted in this nice paper. Thanks for the experimentalist guys on the hill.
