Thermodynamic Properties in Triangular-Lattice Superconductors

Stacked triangular lattice: Percolation properties

The stacked triangular lattice has the shape of a triangular prism. In spite of being considered frequently in solidstate physics and materials science, its percolation properties have received little attention. We investigate several nonuniversal percolation properties on this lattice using Monte Carlo simulation. We show that the percolation threshold is pbond c = 0.18602 ± 0.00002 for bonds ...

Thermodynamic Properties of the Triangular-Lattice Ising Antiferromagnet in a Uniform Magnetic Field

Using both the exact enumeration method (microcanonical transfer matrix) for small systems (up to 9 9 lattices) and the Wang-Landau Monte Carlo algorithm for large systems (up to 30 30 lattices), we obtain the exact and approximate densities of states g(M;E), as a function of magnetization M and exchange energy E, for the triangular-lattice Ising model in the presence of an external uniform mag...

Thermodynamic properties of lattice hard-sphere models.

Thermodynamic properties of several lattice hard-sphere models were obtained from grand canonical histogram- reweighting Monte Carlo simulations. Sphere centers occupy positions on a simple cubic lattice of unit spacing and exclude neighboring sites up to a distance sigma. The nearestneighbor exclusion model, sigma = radical2, was previously found to have a second-order transition. Models with ...

Multiple-Spin Exchange on a Triangular Lattice: A Quantitative Interpretation of Thermodynamic Properties of Two-Dimensional Solid

We apply exact high-temperature series expansions of the multiple-spin-exchange Hamiltonian for a triangular lattice to describe high precision NMR measurements of the nuclear magnetic susceptibility of 3He films adsorbed on graphite, reported here, as well as all available specific heat data. A consistent quantitative description of the unusual thermodynamic properties of the second layer soli...

Estimates for the thermodynamic signatures of vortex-lattice melting in conventional superconductors