Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2005-06-22
Phys. Rev. Lett. 95, 167203 (2005)
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, 4 eps figures; published version
Scientific paper
10.1103/PhysRevLett.95.167203
We study the semiclassical limit of the $Sp(N)$ generalization of the pyrochlore lattice Heisenberg antiferromagnet by expanding about the $N \to \infty$ saddlepoint in powers of a generalized inverse spin. To leading order, we write down an effective Hamiltonian as a series in loops on the lattice. Using this as a formula for calculating the energy of any classical ground state, we perform Monte-Carlo simulations and find a unique collinear ground state. This state is not a ground state of linear spin-wave theory, and can therefore not be a physical (N=1) semiclassical ground state.
Henley Christopher L.
Hizi Uzi
Sharma Prashant
No associations
LandOfFree
Semiclassical ordering in the large-N pyrochlore antiferromagnet does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Semiclassical ordering in the large-N pyrochlore antiferromagnet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiclassical ordering in the large-N pyrochlore antiferromagnet will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-480339