Effect of the Landau Level Mixing on the Ground State of Two-Dimensional Electrons
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概要
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Two dimensional electrons in a strong magnetic field show the fractionalquantum Hall effect at low temperatures. This effect is explained successfully by adiscoverv of a new lictuid tire xround state. However the infinitely strong magneticfield has been assumed in existing theories. Here the ground state around onethird fillins of the lowest Landau level is investizated at a finnte magnetic fieldby numerical diagonalization of the Hamiltonian. When the cyclotron energyis not too small compared to a typical Coulomb energy, no qualitative changeof the ground state is found: A natural generalization of the liquid state at theinfinite mannetic field describes the nround state. Excitation energies of quasi-particles decrease as the magnetic field decreases.
- 社団法人日本物理学会の論文
- 1984-11-15
著者
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Yoshioka Daijiro
College Of General Education Kyushu University
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Yoshioka Daijiro
College Of Arts And Sciences University Of Tokyo
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Yoshioka Daijiro
College of General Education,Kyushu University
関連論文
- Two-Dimensional Electrons in a Periodically Modulated Magnetic Field
- Specific Heat of the 2-D Electrons in a Strong Magnetic Field : II. LOW TEMPERATURE PROPERTIES OF SOLIDS : Localization, Mesoscopic Systems
- Fractional Quantum Hall Effect and Specific Heat of 2-d Electrons
- Excitation Energies of the Fractional Quantum Hall Effect
- Gauge Fields in Slave-Fermion Formalism. I. : Destruction of the Neel Order
- Mean Field Theory of the Square Lattice Antiferromagnetic Heisenberg Model
- Excitation Spectrum of the Fractional Quantum Hall Effect:Two Component Fermion System
- Effect of the Landau Level Mixing on the Ground State of Two-Dimensional Electrons
- A Simple Model for Superconductor-Semiconductor Transition
- Theory of the Fractional Quantum Hall Effect