Mesoscopic conductance fluctuations in graphene
arXiv:0902.0904 · doi:10.1016/j.ssc.2009.02.058
Abstract
We study fluctuations of the conductance of micron-sized graphene devices as a function of the Fermi energy and magnetic field. The fluctuations are studied in combination with analysis of weak localization which is determined by the same scattering mechanisms. It is shown that the variance of conductance fluctuations depends not only on inelastic scattering that controls dephasing but also on elastic scattering. In particular, contrary to its effect on weak localization, strong intervalley scattering suppresses conductance fluctuations in graphene. The correlation energy, however, is independent of the details of elastic scattering and can be used to determine the electron temperature of graphene structures.
6 pages, 6 figures. Submitted to the proceedings of Graphene Week 2008 (Trieste, Italy)
References in corpus (12)
- Electric Field Effect in Atomically Thin Carbon Films
- Giant Intrinsic Carrier Mobilities in Graphene and Its Bilayer
- Weak localisation magnetoresistance and valley symmetry in graphene
- Weak localisation in graphene flakes
- Symmetry Classes in Graphene Quantum Dots: Universal Spectral Statistics, Weak Localization, and Conductance Fluctuations
- Influence of trigonal warping on interference effects in bilayer graphene
- Anomalously large conductance fluctuations in weakly disordered graphene
- Mesoscopic conductance fluctuations in graphene samples
- Quantum kinetic equation and universal conductance fluctuations in graphene
- Suppression of conductance fluctuation in weakly disordered mesoscopic graphene samples near the charge neutral point
- Quantum transport thermometry for electrons in graphene
- Weak localisation in bilayer graphene
Cited by in corpus (25)
- Electronic transport in two dimensional graphene
- Smooth electron waveguides in graphene
- Manifestation of electron-electron interaction in the magnetoresistance of graphene
- Coulomb interaction in graphene: Relaxation rates and transport
- Exotic Multifractal Conductance Fluctuations in Graphene
- Quantum transport and observation of Dyakonov-Perel spin-orbit scattering in monolayer MoS
- Single- and multi-mode Fabry-Pérot interference in suspended graphene
- Spin-resolved Quantum Interference in Graphene
- Imaging coherent transport in graphene (Part II): Probing weak localization
- Random matrices and quantum chaos in weakly-disordered graphene nanoflakes
- Non-Ergodicity & Microscopic Symmetry Breaking of the Conductance Fluctuations in Disordered Mesoscopic Graphene
- Edge effects in graphene nanostructures: II. Semiclassical theory of spectral fluctuations and quantum transport
- Transport Detection of Quantum Hall Fluctuations in Graphene
- Hysteresis loops of the magnetoconductance in graphene devices
- Fluctuation Phenomena in Chaotic Dirac Quantum Dots: Artificial Atoms on Graphene Flakes
- Conductance Peak Density in Nanowires
- Quantum Interference Noise Near the Dirac Point in Graphene
- Full counting statistics in disordered graphene at Dirac point: From ballistics to diffusion
- Relationship between conductance fluctuation and weak localization in graphene
- Temperature dependence of universal conductance fluctuation due to development of weak localization in graphene
- Mapping universal conductance fluctuations
- Nonstandard transition GUE-GOE for random matrices and spectral statistics of graphene nanoflakes
- Weak localization and universal conductance fluctuations in large area twisted bilayer graphene
- Conductance fluctuations in graphene devices with superconducting contacts in different charge density regimes
- Non-Adhesive Transfer Process of Carbon Nanotube Forests onto Flexible Kapton Substrates