@article {condmat3020011,
	title = {Electronic Properties of Curved Few-Layers Graphene: A Geometrical Approach},
	journal = {Condensed Matter},
	volume = {3},
	number = {2, ARTICLE NUMBER = 1},
	year = {2018},
	abstract = {We show the presence of non-relativistic L{\'e}vy-Leblond fermions in flat three- and four-layers graphene with AB stacking, extending the results obtained in Cariglia et al. 2017 for bilayer graphene. When the layer is curved we obtain a set of equations for Galilean fermions that are a variation of those of L{\'e}vy-Leblond with a well defined combination of pseudospin, and that admit L{\'e}vy-Leblond spinors as solutions in an approriate limit. The local energy of such Galilean fermions is sensitive to the intrinsic curvature of the surface. We discuss the relationship between two-dimensional pseudospin, labelling layer degrees of freedom, and the different energy bands. For L{\'e}vy-Leblond fermions, an interpretation is given in terms of massless fermions in an effective 4D spacetime, and in this case the pseudospin is related to four dimensional chirality. A non-zero energy band gap between conduction and valence electronic bands is obtained for surfaces with positive curvature.},
	issn = {2410-3896},
	doi = {10.3390/condmat3020011},
	url = {http://www.mdpi.com/2410-3896/3/2/11},
	author = {Cariglia, Marco and Giamb{\`o}, Roberto and Perali, Andrea}
}
