Destruction of Neel Ordering of S=1 Square Lattice Magnets
ORAL
Abstract
We introduce models of spin S=1 that can be simulated sign-problem free with means of a Stochastic Series Expansion Quantum Monte Carlo (SSE QMC). Compared to the S=1/2 case there is a plethora of new phases and phase transitions
that these models give access to. In this talk, we will focus on a spin-1 Heisenberg Model with both 2 and 4 spin bilinear-biquadratic interactions on the square lattice. We study the competion of Neel and valence bond solid phases and the nature of the quantum phase transitions between these states of matter.
that these models give access to. In this talk, we will focus on a spin-1 Heisenberg Model with both 2 and 4 spin bilinear-biquadratic interactions on the square lattice. We study the competion of Neel and valence bond solid phases and the nature of the quantum phase transitions between these states of matter.
*The authors thank NSF DMR #1306897 and NSF DMR #1611161 for partial support.
–
Presenters
-
Ribhu Kaul
- Department of Physics and Astronomy, University of Kentucky