Tomonaga-Luttinger liquid parameters of magnetic waveguides in graphene

Autor:	Häusler, W., De Martino, A., Ghosh, T. K., Egger, R.
Rok vydání:	2008
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Strongly Correlated Electrons
Zdroj:	Phys. Rev. B 78, 165402 (2008)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.78.165402
Popis:	Electronic waveguides in graphene formed by counterpropagating snake states in suitable inhomogeneous magnetic fields are shown to constitute a realization of a Tomonaga-Luttinger liquid. Due to the spatial separation of the right- and left-moving snake states, this non-Fermi liquid state induced by electron-electron interactions is essentially unaffected by disorder. We calculate the interaction parameters accounting for the absence of Galilei invariance in this system, and thereby demonstrate that non-Fermi liquid effects are significant and tunable in realistic geometries. Comment: 10 pages, 5 figures, published version
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0807.2606 Zobrazit plný text záznamu View this record from Arxiv