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Effect of uniaxial strain on the Drude weight of graphene |
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| Authors: | F. M.D. Pellegrino R. Pucci |
| Affiliation: | 1. Dipartimento di Fisica e Astronomia , Università di Catania , Via S. Sofia, 64, I-95123, Catania, Italy;2. Scuola Superiore di Catania , Via S. Nullo, 5/i, I-95123, Catania, Italy;3. CNISM, UdR Catania , I-95123, Catania, Italy;4. CNR-IMM , Z.I. VIII Strada 5, I-95121, Catania, Italy;5. CNISM, UdR Catania , I-95123, Catania, Italy |
| Abstract: | We study the dependence on the strength and orientation of applied uniaxial strain of the Drude weight in the conductivity of graphene. We find a non-monotonic dependence on strain, which may be related to the proximity to several strain-induced electronic topological transitions. Given the relation between the Drude weight and the long-wavelength plasmon frequency, such a strain dependence can be evidenced by infrared spectroscopy measurements. |
| Keywords: | graphene conductivity uniaxial strain electronic topological transition |