Spin structure factor and thermodynamics in the antiferromagnetic transverse-field Ising model on the pyrochlore lattice
Journal
Physical Review B - Condensed Matter and Materials Physics
Journal Volume
85
Journal Issue
13
Date Issued
2012
Author(s)
Abstract
We numerically compute the temperature dependence of the spin structure factor and thermodynamic quantities in the antiferromagnetic transverse-field Ising model in the pyrochlore lattice. This model exhibits a spin disorder ground state with exponentially decayed spin correlation. There is a pinch point structure in the spin structure factor which exhibits singular behavior at zero temperature. The residual entropy at zero temperature is also correctly obtained. © 2012 American Physical Society.
Type
journal article