Specific Heat and Magnetic Susceptibility of Ising-Like Anisotropic Heisenberg Model on Kagome Lattice
スポンサーリンク
概要
- 論文の詳細を見る
The specific heat and magnetic susceptibility of a spin-1/2 Ising-like anisotropic Heisenberg model (IAHM) on a kagome lattice are investigated by an exact diagonalization method for small clusters up to 18 spins with periodic boundary conditions. The enhancement of magnetic susceptibility from the Curie--Weiss law and the peak structure of specific heat at intermediate temperatures are attributed to a longitudinal (classical) spin fluctuation, and the steep decrease and the second peak at lower temperatures in those respective quantities to a transverse (quantum) spin fluctuation. It is verified that such anomalies may be produced by interruption by a semiclassical liquidlike state consisting of doubletlike triangular trimmers between a higher-temperature classical spin gaslike state and a lower-temperature quantum spin singlet state. The IAHM may give a general viewpoint for interpreting the experimentally observed thermodynamic properties of spin systems with various triangle-based lattices.
- 2011-08-15
著者
-
Isoda Makoto
Department Of Materials Science Faculty Of Science Hiroshima University
-
Nakano Hiroki
Graduate School And Faculty Of Science Himeji Institute Of Technology
-
Sakai Tôru
Graduate School of Material Science, University of Hyogo, Kamigori, Hyogo 678-1297, Japan
関連論文
- Scaling Relation for Excitation Energy under Hyperbolic Deformation(General and Mathematical Physics)
- Extended String Order Parameter in the (S=1, 1/2) Mixed Spin Chain(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- The Trimer State of a (S=1,S=1/2) Ferrimagnetic Spin Chain as the Exact Ground State
- Magnetization Process of (S=3/2, S=1) Anisotropic Ferrimagnetic Spin Chain(Low Dimensional Systems, Field-Induced Phase Transitions and Dynamics in Quantum Spin Systems)
- Numerical Study of the Magnetization Process of Nanoscale Ferrimagnetic Ring Mn_6R_6(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Partial Ferromagnetism in the Hubbard Chain with Next-Nearest-Neighbor Hopping (Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties)
- Pressure-Induced Antiferromagnetism of Fe_2P
- Magnetocrystalline Anisotropy of (Co_Mn_x)_2B
- Valence-Bond Crystal and Anisotropic Excitation Spectrum on 3-Dimensionally Frustrated Pyrochlore
- Magnetic Correlation and Breakdown of Fermi Liquid Picture in Frustrated Itinerant Electron Magnet : Condensed Matter: Electronic Properties, etc.
- Magnetic Properties of Half-Metallic f-Electron Systems
- Ferrimagnetism Caused by Charge Ordering in Doped Antiferromagnetic Ising Spins(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Reexamination of Finite-Lattice Extrapolation of Haldane Gaps(General)
- Drude Weight of the Two-Dimensional Hubbard Model : Reexamination of Finite-Size Effect in Exact Diagonalization Study(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Magnetization Ramp of the Kagome Lattice Antiferromagnet : An Application of Parallelized Lanczos Algorithm(New Development of Numerical Simulations in Low-Dimensional Quantum Systems: From Density Matrix Renormalization Group to Tensor Network Formulatio
- Metal-Insulator Transition of the Hubbard Chain with Next-Nearest-Neighbor Hopping : Partially Ferromagnetic Metal toward Mott Insulator (Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Partial Ferromagnetism in the Hubbard Chain with Next-Nearest-Neighbor Hopping
- Hyperbolic Deformation Applied to S = 1 Spin Chains --- Scaling Relation in Excitation Energy ---
- Quantum Magnetization Plateau in Spin-1 Triangular-Lattice Antiferromagnet Ba3NiSb2O9
- Specific Heat and Magnetic Susceptibility of Ising-Like Anisotropic Heisenberg Model on Kagome Lattice
- Haldane, Large-D, and Intermediate-D States in an S = 2 Quantum Spin Chain with On-Site and XXZ Anisotropies
- Frustration-Induced Ferrimagnetism in S = 1/2 Heisenberg Spin Chain
- Ferrimagnetism of the Heisenberg Models on the Quasi-One-Dimensional Kagome Strip Lattices
- Numerical-Diagonalization Study of Spin Gap Issue of the Kagome Lattice Heisenberg Antiferromagnet
- Collapse of Ferrimagnetism in Two-Dimensional Heisenberg Antiferromagnet due to Frustration
- Magnetization Process of Kagome-Lattice Heisenberg Antiferromagnet
- Crystal Structure and Magnetic Properties of the Verdazyl Biradical m-Ph-V
- Long-Range Order of the Three-Sublattice Structure in the S=1 Heisenberg Antiferromagnet on a Spatially Anisotropic Triangular Lattice
- The Two-Dimensional S=1/2 Heisenberg Antiferromagnet on the Shuriken Lattice : A Lattice Composed of Vertex-Sharing Triangles