Limits on charge carrier mobility in suspended graphene due to flexural phonons

• Published in: Physical review letters Vol. 105; no. 26; p. 266601
• Main Authors: Castro, Eduardo V, Ochoa, H, Katsnelson, M I, Gorbachev, R V, Elias, D C, Novoselov, K S, Geim, A K, Guinea, F
• Format: Journal Article
• Language: English
• Published: United States 22.12.2010

The temperature dependence of the mobility in suspended graphene samples is investigated. In clean samples, flexural phonons become the leading scattering mechanism at temperature T≳10 K, and the resistivity increases quadratically with T. Flexural phonons limit the intrinsic mobility down to a few...