scholarly journals Many-body corrections to cyclotron resonance in monolayer and bilayer graphene

2010 ◽  
Vol 81 (7) ◽  
Author(s):  
K. Shizuya
Keyword(s):  
Cyclotron Resonance ◽  
Bilayer Graphene ◽  
Many Body

Probing many-body interactions in the cyclotron resonance of h -BN/bilayer graphene/ h -BN

2021 ◽  
Vol 104 (24) ◽  
Author(s):  
Rai Moriya ◽  
Sabin Park ◽  
Satoru Masubuchi ◽  
Kenji Watanabe ◽  
Takashi Taniguchi ◽  
...  
Keyword(s):  
Cyclotron Resonance ◽  
Bilayer Graphene ◽  
Many Body ◽  
Many Body Interactions

scholarly journals Orbital-specific Tunability of Many-Body Effects in Bilayer Graphene by Gate Bias and Metal Contact

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Hirokazu Fukidome ◽  
Masato Kotsugi ◽  
Kosuke Nagashio ◽  
Ryo Sato ◽  
Takuo Ohkochi ◽  
...  
Keyword(s):  
Bilayer Graphene ◽  
Metal Contact ◽  
Gate Bias ◽  
Many Body ◽  
Many Body Effects

A many-body projection approach to quantum-limit magneto-optical transition of two-dimensional electrons confined in a parabolic well

1999 ◽  
Vol 77 (3) ◽  
pp. 235-240
Author(s):  
N L Kang ◽  
J Y Ryu ◽  
S D Choi
Keyword(s):  
Temperature Dependence ◽  
Cyclotron Resonance ◽  
Optical Transition ◽  
Quantum Limit ◽  
Optical Transitions ◽  
Two Dimensional ◽  
Many Body ◽  
Projection Technique ◽  
Resonance Linewidth ◽  
Projection Approach

We apply the theory of magneto-optical transitions, introduced earlier by utilizing a many-body projection technique, on a system of electrons scattered by piezoelectric phonons in GaAs; the temperature dependence of the cyclotron resonance linewidth is investigated. It is shown that the width in the quantum limit increases with the temperature.PACS Nos.: 70.00--79.90

scholarly journals Electron-hole asymmetric integer and fractional quantum Hall effect in bilayer graphene

Science ◽  
2014 ◽  
Vol 345 (6192) ◽  
pp. 55-57 ◽  
Author(s):  
A. Kou ◽  
B. E. Feldman ◽  
A. J. Levin ◽  
B. I. Halperin ◽  
K. Watanabe ◽  
...  
Keyword(s):  
Hall Effect ◽  
Quantum Hall Effect ◽  
Quantum Hall ◽  
Bilayer Graphene ◽  
Fractional Quantum Hall Effect ◽  
Many Body ◽  
Electron Hole ◽  
Fractional Quantum ◽  
Fractional Quantum Hall ◽  
Lowest Landau Level

The nature of fractional quantum Hall (FQH) states is determined by the interplay between the Coulomb interaction and the symmetries of the system. The distinct combination of spin, valley, and orbital degeneracies in bilayer graphene is predicted to produce an unusual and tunable sequence of FQH states. Here, we present local electronic compressibility measurements of the FQH effect in the lowest Landau level of bilayer graphene. We observe incompressible FQH states at filling factors ν = 2p + 2/3, with hints of additional states appearing at ν = 2p + 3/5, where p = –2, –1, 0, and 1. This sequence breaks particle-hole symmetry and obeys a ν → ν + 2 symmetry, which highlights the importance of the orbital degeneracy for many-body states in bilayer graphene.

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