scholarly journals Electron-phonon scattering and in-plane electric conductivity in twisted bilayer graphene

2016 ◽  
Vol 94 (24) ◽  
Author(s):  
N. Ray ◽  
M. Fleischmann ◽  
D. Weckbecker ◽  
S. Sharma ◽  
O. Pankratov ◽  
...  
Keyword(s):  
Electric Conductivity ◽  
Phonon Scattering ◽  
Bilayer Graphene ◽  
Twisted Bilayer Graphene ◽  
Electron Phonon Scattering

scholarly journals Carrier transport theory for twisted bilayer graphene in the metallic regime

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Girish Sharma ◽  
Indra Yudhistira ◽  
Nilotpal Chakraborty ◽  
Derek Y. H. Ho ◽  
M. M. Al Ezzi ◽  
...  
Keyword(s):  
Experimental Data ◽  
Carrier Transport ◽  
Transport Theory ◽  
Phonon Scattering ◽  
Twist Angle ◽  
Quantitative Agreement ◽  
Bilayer Graphene ◽  
Magic Angle ◽  
Accurate Treatment ◽  
Twisted Bilayer Graphene

AbstractUnderstanding the normal-metal state transport in twisted bilayer graphene near magic angle is of fundamental importance as it provides insights into the mechanisms responsible for the observed strongly correlated insulating and superconducting phases. Here we provide a rigorous theory for phonon-dominated transport in twisted bilayer graphene describing its unusual signatures in the resistivity (including the variation with electron density, temperature, and twist angle) showing good quantitative agreement with recent experiments. We contrast this with the alternative Planckian dissipation mechanism that we show is incompatible with available experimental data. An accurate treatment of the electron-phonon scattering requires us to go well beyond the usual treatment, including both intraband and interband processes, considering the finite-temperature dynamical screening of the electron-phonon matrix element, and going beyond the linear Dirac dispersion. In addition to explaining the observations in currently available experimental data, we make concrete predictions that can be tested in ongoing experiments.

TEMPERATURE DEPENDENCE BEHAVIOR OF ELECTRICAL RESISTIVITY IN NOBLE METALS AT LOW TEMPERATURES

2014 ◽  
Vol 5 (3) ◽  
pp. 982-992 ◽  
Author(s):  
M AL-Jalali
Keyword(s):  
Experimental Data ◽  
Electrical Resistivity ◽  
Temperature Dependence ◽  
Concentration Dependence ◽  
Low Temperatures ◽  
Noble Metals ◽  
Phonon Scattering ◽  
Theoretical Models ◽  
Residual Resistivity ◽  
Electron Phonon Scattering

Resistivity temperature – dependence and residual resistivity concentration-dependence in pure noble metals(Cu, Ag, Au) have been studied at low temperatures. Dominations of electron – dislocation and impurity, electron-electron, and electron-phonon scattering were analyzed, contribution of these mechanisms to resistivity were discussed, taking into consideration existing theoretical models and available experimental data, where some new results and ideas were investigated.

scholarly journals Correlation-Induced Insulating Topological Phases at Charge Neutrality in Twisted Bilayer Graphene

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yuan Da Liao ◽  
Jian Kang ◽  
Clara N. Breiø ◽  
Xiao Yan Xu ◽  
Han-Qing Wu ◽  
...  
Keyword(s):  
Bilayer Graphene ◽  
Topological Phases ◽  
Charge Neutrality ◽  
Twisted Bilayer Graphene

scholarly journals Strange metal behavior of the Hall angle in twisted bilayer graphene

2021 ◽  
Vol 103 (24) ◽  
Author(s):  
Rui Lyu ◽  
Zachary Tuchfeld ◽  
Nishchhal Verma ◽  
Haidong Tian ◽  
Kenji Watanabe ◽  
...  
Keyword(s):  
Bilayer Graphene ◽  
Hall Angle ◽  
Twisted Bilayer Graphene

scholarly journals Correlated insulators in twisted bilayer graphene

2021 ◽  
Vol 103 (12) ◽  
Author(s):  
Ipsita Mandal ◽  
Jia Yao ◽  
Erich J. Mueller
Keyword(s):  
Bilayer Graphene ◽  
Twisted Bilayer Graphene

scholarly journals Disorder in twisted bilayer graphene

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Justin H. Wilson ◽  
Yixing Fu ◽  
S. Das Sarma ◽  
J. H. Pixley
Keyword(s):  
Bilayer Graphene ◽  
Twisted Bilayer Graphene
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