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Influence of Long-range Interactions on Charge Ordering Phenomena on a Square Lattice by Rademaker, Louk; Pramudya, Yohanes; Zaanen, Jan; Dobrosavljevic, Vladimir is a scholarly article available to read on EtoBox.

What is Influence of Long-range Interactions on Charge Ordering Phenomena on a Square Lattice about?

Usually complex charge ordering phenomena arise due to competing interactions. We have studied how such ordered patterns emerge from the frustration of a long-ranged interaction on a lattice. Using the lattice gas model on a square lattice with fixed particle density, we have identified several interesting phases; such as a generalization of Wigner crystals at low particle densities and stripe phases at densities in between rho = 1/3 and rho = 1/2. These stripes act as domain walls in the checkerboard phase present at half-filling. The phases are characterised at zero temperatures using numerical simulations, and mean field theory is used to construct a finite temperature phase diagram.

Author

Rademaker, Louk; Pramudya, Yohanes; Zaanen, Jan; Dobrosavljevic, Vladimir

Published

2013

Language

EN