Thermodynamic Properties of Kagome Antiferromagnets with different Perturbations
arXiv:0809.2621 · doi:10.1088/1742-6596/145/1/012003
Abstract
We discuss the results of several small perturbations to the thermodynamic properties of Kagome Lattice Heisenberg Model (KLHM) at high and intermediate temperatures, including Curie impurities, dilution, in-plane and out of plane Dzyaloshinski-Moria (DM) anisotropies and exchange anisotropy. We examine the combined role of Curie impurities and dilution in the behavior of uniform susceptibility. We also study the changes in specific heat and entropy with various anisotropies. Their relevance to newly discovered materials ZnCu3(OH)6Cl2 is explored. We find that the magnetic susceptibility is well described by about 6 percent impurity and dilution. We also find that the entropy difference between the material and KLHM is well described by the DM parameter D_z/J~0.1.
6 pages, 3 figures, proceedings of the HFM 2008 Conference
References in corpus (16)
- Spin Dynamics of the Spin-1/2 Kagome Lattice Antiferromagnet ZnCu_3(OH)_6Cl_2
- Projected wavefunction study of Spin-1/2 Heisenberg model on the Kagome lattice
- Quantum magnetism in the paratacamite family: towards an ideal kagome lattice
- Properties of an algebraic spin liquid on the kagome lattice
- Algebraic spin liquid as the mother of many competing orders
- 17O NMR study of the intrinsic magnetic susceptibility and spin dynamics of the quantum kagome antiferromagnet ZnCu3(OH)6Cl2
- Ground State of the Kagome Lattice Heisenberg Antiferromagnet
- Dzyaloshinsky-Moriya Anisotropy in the Spin-1/2 Kagomé Compound ZnCu(OH)Cl
- Numerical Linked-Cluster Approach to Quantum Lattice Models
- ^{63}Cu, ^{35}Cl, and ^{1}H NMR in the S=1/2 Kagomé Lattice ZnCu_{3}(OH)_{6}Cl_{2}
- Low temperature magnetization of the S=1/2 kagome antiferromagnet ZnCu_3(OH)_6Cl_2
- Magnetic Susceptibility of the Kagome Antiferromagnet ZnCu3(OH)6Cl2
- Numerical Linked-Cluster Algorithms. I. Spin systems on square, triangular, and kagome lattices
- Triplet and Singlet Excitations in the Valence Bond Crystal Phase of Kagome Lattice Heisenberg Model
- How to detect weak emergent broken-symmetries of the Kagome antiferromagnet from Raman spectroscopy
- Weak Ferromagnetic Exchange and Anomalous Specific Heat in ZnCu3(OH)6Cl2