Electronic ground state in bilayer graphene with realistic Coulomb interactions
نویسندگان
چکیده
منابع مشابه
Negative Coulomb Drag in Double Bilayer Graphene.
We report on an experimental measurement of Coulomb drag in a double quantum well structure consisting of bilayer-bilayer graphene, separated by few layer hexagonal boron nitride. At low temperatures and intermediate densities, a novel negative drag response with an inverse sign is observed, distinct from the momentum and energy drag mechanisms previously reported in double monolayer graphene. ...
متن کاملElectronic multicriticality in bilayer graphene
We map out the possible ordered states in bilayer graphene at the neutrality point by extending the previous renormalization group treatment of many-body instabilities to finite temperature, trigonal warping and externally applied perpendicular electric field.We were able to analytically determine all outcomes of the RG flow equations for the nine four-fermion coupling constants.While the full ...
متن کاملScattering theory and ground-state energy of Dirac fermions in graphene with two Coulomb impurities
We study the physics of Dirac fermions in a gapped graphene monolayer containing two Coulomb impurities. For the case of equal impurity charges, we discuss the ground-state energy using the linear combination of atomic orbitals (LCAO) approach. For opposite charges of the Coulomb centers, an electric dipole potential results at large distances. We provide a nonperturbative analysis of the corre...
متن کاملElectronic structure in gapped graphene with a Coulomb potential
Wei Zhu,1 Zhengfei Wang,1 Qinwei Shi,1,2,* K. Y. Szeto,2 Jie Chen,3,4 and J. G. Hou1 1Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China 2Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 3Electrical and Computer Engineering, University of Alberta, Alberta,...
متن کاملElectronic compressibility of layer-polarized bilayer graphene
A. F. Young,1 C. R. Dean,2,3 I. Meric,2 S. Sorgenfrei,2 H. Ren,1 K. Watanabe,4 T. Taniguchi,4 J. Hone,3 K. L. Shepard,2 and P. Kim1 1Department of Physics, Columbia University, New York, New York 10027, USA 2Department of Electrical Engineering, Columbia University, New York, New York 10027, USA 3Department of Mechanical Engineering, Columbia University, New York, New York 10027, USA 4Advanced ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2019
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.100.125116