Quantum criticality of the kagome antiferromagnet with Dzyaloshinskii-Moriya interactions

TL;DR

This paper explores the phase transitions in a kagome antiferromagnet influenced by Dzyaloshinskii-Moriya interactions, revealing the conditions for transitions between quantum spin liquids and magnetic order.

Contribution

It develops a theoretical framework for the transition between Z2 spin liquids and antiferromagnetic order in the kagome antiferromagnet with Dzyaloshinskii-Moriya interactions.

Findings

Identifies the phase boundary between spin liquid and magnetic order.

Connects theoretical predictions with recent numerical and experimental results.

Provides insight into quantum critical behavior in kagome antiferromagnets.

Abstract

We investigate the zero-temperature phase diagram of the nearest-neighbor kagome antiferromagnet in the presence of Dzyaloshinksii-Moriya interaction. We develop a theory for the transition between Z2 spin liquids with bosonic spinons and a phase with antiferromagnetic long-range order. Connections to recent numerical studies and experiments are discussed.