# Competing phases in spin ladders with ring exchange and frustration

@article{Metavitsiadis2017CompetingPI, title={Competing phases in spin ladders with ring exchange and frustration}, author={Alexandros Metavitsiadis and Sebastian Eggert}, journal={Physical Review B}, year={2017}, volume={95}, pages={144415} }

The ground state properties of spin-1/2 ladders are studied, emphasizing the role of frustration and ring exchange coupling. We present a unified field theory for ladders with general coupling constants and geometry. Rich phase diagrams can be deduced by using a renormalization group calculation for ladders with in--chain next nearest neighbor interactions and plaquette ring exchange coupling. In addition to established phases such as Haldane, rung singlet, and dimerized phases, we also observe…

## 10 Citations

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