# Competing phases in spin ladders with ring exchange and frustration

@article{Metavitsiadis2017CompetingPI,
title={Competing phases in spin ladders with ring exchange and frustration},
journal={Physical Review B},
year={2017},
volume={95},
pages={144415}
}
• Published 30 November 2016
• Physics
• Physical Review B
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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