Edge States in the Three-Quarter Filled System, \alpha-(BEDT-TTF)2I3
スポンサーリンク
概要
- 論文の詳細を見る
We study the edge states in the two-dimensional conductor \alpha-(BEDT-TTF)2I3 theoretically. We show that the Dirac points and the edge states appear at the 3/4 and 1/4 filling as well as the half filling, due to four sites in the unit cell. This situation is in contract with the graphene, where the Dirac points and the edge states appear only at the half filling case. The edge states exist in both vertical and horizontal edges. For the 3/4 filled case it is shown that there exists edge states for all possible edges in the regions of |k_{y}|>|K_{y}| or |k_{y}|<|K_{y}| for the vertical edges, and |k_{x}|>|K_{x}| or |k_{x}|<|K_{x}| for the horizontal edges, where \pm(K_{x},K_{y}) are the positions of the Dirac points in the bulk system, depending on the choice of edges.
- 2011-05-15
著者
-
Kishigi Keita
Faculty Of Education Kumamoto University
-
Hasegawa Yasumasa
Department Of Material Science Graduate School Of Material Science University Of Hyogo
-
Hasegawa Yasumasa
Department of Material Science, Graduate School of Material Science, University of Hyogo, Kamigori, Hyogo 678-1297, Japan
-
Kishigi Keita
Faculty of Education, Kumamoto University, Kumamoto 860-8555, Japan
関連論文
- Spin Excitations and Momentum Distribution in the Two-Dimensional Extended t-J Model
- Ground-State Properties of Two-Dimensional t-t'-J Model
- Energy Gap and Averaged Inversion Symmetry of Tight-Binding Electrons on Generalized Honeycomb Lattice(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Two-Dimensional Hubbard Model at Low Electron Density
- Dipole Interaction in Triplet Superconductivity with Horizontal Line Nodes : Orientation of the Superconducting Order Parameter in Sr_2RuO_4 (Condensed Matter: Electric Structure, Electrical, Magnetic and Optical Properties)
- Spin-Density-Wave Transition in Quasi-One-Dimensional System Under Uniaxial Pressure : Condensed Matter: Electronic Properties, etc.
- Spin Splitting Effect on de Haas-van Alphen Oscillation in Two-Dimensional Two-Band Systems : Condensed Matter: Electronic Properties, etc.
- Possible Spin-Singlet Superconductivity in (TMTSF)_2X:Superconducting Transition Temperature in a Magnetic Field
- Superconductivity of Quasi-Two-Dimensional Tight-Binding Electrons in a Strong Magnetic Field
- Enhancement of de Haas-van Alphen Oscillation due to Spin in the Magnetic Breakdown System
- Superconductivity of Quasi-One-and Quasi-Two-Dimensional Tight-Binding Electrons in a Magnetic Field
- Field-Induced Spin Density Wave in Periodic Potential
- Theory of the High Field Phase in(TMTSF)_2ClO_4
- Theory of the High Field Phase in (TMTSF)2ClO4 under Anion Ordering
- Effect of ursodeoxycholate-3, 7-disulfate on biliary excretion of lithocholate-3-O-glucuronide in Eisai hyperbilirubinemic rat (EHBR)
- Nonuniform Spin Triplet Superconductivity due to Antisymmetric Spin-Orbit-Coupling in Noncentrosymmetric Superconductor CePt_3Si(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Coexistent State of Charge Density Wave and Spin Density Wave in One-Dimensional Quarter Filled Band Systems under Magnetic Fields : Condensed Matter: Electronic Properties, etc.
- Generalized Susceptibility of Quasi-One-Dimensional Electrons in a Periodic Potential
- Coexistent States of Charge Density Wave and Spin Density Wave in the One-Dimensional Extended Hubbard Model for the Arbitrary Electron Filling : Condensed Matter: Electronic Properties, etc.
- High Field Phase Diagram in (TMTSF)_2ClO_4 under Anion Ordering
- Magic Angle Effects of One-Dimensional Axis Conductivity in Quasi-One-Dimensional Conductors(Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
- Effects of Electron Correlation near Spin-Density-Wave on Angle Dependence of Magnetoconductivity(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Two Kinds of the Coexistent States in One-Dimensional Quarter-Filled Systems under Magnetic Fields and Temperatures : Condensed Matter: Electronic Properties, etc.
- Biliary excretion of temocapril in zone 1- and zone 3-injured rat
- Spin Triplet Superconductivity and Spin-Orbit Coupling in CePt_3Si
- Edge States in the Three-Quarter Filled System, \alpha-(BEDT-TTF)2I3
- Energy spectrum of Electrons on Three Dimensional Lattice in External Magnetic Field
- Interband Coulomb Interaction and Horizontal Line Nodes in Triplet Superconductor Sr_2RuO_4
- Spin Triplet Superconductivity and Spin–Orbit Coupling in CePt3Si