Gap Evolution in ν = 1/2 Bilayer Quantum Hall Systems(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
スポンサーリンク
概要
- 論文の詳細を見る
Fractional quantum Hall states in bilayer systems at the total filling fraction ν = 1/2 are examined numerically within some ranges of layer separation and interlayer tunneling. It is shown that the ground state changes continuously from a two-component state to a one-component state as the interlayer tunneling rate is increased, while the lowest excited state changes discontinuously. This fact explains the unusual behavior of the observed activation energies which reveals an upward cusp as a function of interlayer tunneling. Some trial wave functions for the ground state and quasihole excited states are inspected.
- 社団法人日本物理学会の論文
- 2004-10-15
著者
-
YOSHIOKA Daijiro
Department of Basic Science, University of Tokyo
-
Nomura Kentaro
Department Of Basic Science University Of Tokyo : (present Address)department Of Physics University
-
Nomura Kentaro
Department Of Basic Science University Of Tokyo
-
Yoshioka Daijiro
Department Of Basic Science Graduate School Of Arts And Sciences University Of Tokyo
関連論文
- Phase Separation in ν=2/3 Fractional Quantum Hall Systems(Condensed matter : electronic structure and electrical, magnetic, and optical properties)
- Ground State of v=1 Bilayer Quantum Hall Systems(Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
- Real Space Effective Interaction and Phase Transition in the Lowest Landau Level(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Stripe State in the Lowest Landau Level(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Ground State Phase Diagram of 2D Electrons in High Magnetic Field
- Susceptibilities of Sr (Cu_Zn_x)_2O_3 Studied by Quantum Monte Carlo Simulation
- Uniform Current in Graphene Strip with Zigzag Edges
- Boson Mean Field Theory of the Triangular Lattice Heisenberg Model
- Nontrivial Behavior of the Fermi Arc in the Staggered-Flux Ordered Phase(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Resonating-Valence-Bond Ground State of CaV_4O_9 Studied by the Gutzwiller-Projected Schwinger-Boson Method
- Wave Function of the Largest Skyrmion on a Sphere
- Gap Evolution in ν = 1/2 Bilayer Quantum Hall Systems(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Local Density of States around Impurity in a Strong Magnetic Field : I. Two-Dimensional System with Parabolic Dispersion(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Displacement of Apical Oxygen of the Oxide Superconductors below T_c
- Double Quantum Well Electron-Hole Systems in Strong Magnetic Fields
- Slave-Fermion Mean Field Theory of the Hubbard Model
- Superconductivity of the t-t'-J Model
- Boson Mean Field Theory of the Square Lattice Heisenberg Model
- Theory of "Charge" Measured by Shot Noise Experiments in Fractional Quantum Hall States(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- QHE of Bilayer Systems in the Presence of Tunneling : ν=1/q case
- The Edge State Network Model and the Global Phase Diagram
- Composite Fermions with Spin Freedom
- Pairing Symmetry Transitions in the Even-Denominator FQHE System
- Stability of the Excitonic Phase in Bilayer Quantum Hall Systems at Total Filling One —Effects of Finite Well Width and Pseudopotentials—
- Fractional Quantum Hall Effects in Graphene and Its Bilayer
- The Edge State Network Model and the Global Phase Diagram
- Strong Quasi-Particle Tunneling Study in the Paired Quantum Hall States
- Pairing Symmetry Transitions in the Even-Denominator FQHE System