From Spinon Band Topology to the Symmetry Quantum Numbers of Monopoles in Dirac Spin Liquids

• Published in: Physical review. X Vol. 10; no. 1; p. 011033
• Main Authors: Song, Xue-Yang, He, Yin-Chen, Vishwanath, Ashvin, Wang, Chong
• Format: Journal Article
• Language: English
• Published: College Park American Physical Society 01.02.2020
• Subjects: Absolute zero; Angular momentum; Antiferromagnetism; Band theory; Condensed matter physics; Excitation; Fermions; Gauge theory; High temperature; Insulators; Kagome lattice; Liquids; Magnetic flux; Magnetic monopoles; Magnetic properties; Magnetism; Magnets; Quantum electrodynamics; Quantum numbers; Spin liquid; Superconductivity; Symmetry; Topology

The interplay of symmetry and topology has been at the forefront of recent progress in quantum matter. Here, we uncover an unexpected connection between band topology and the description of competing orders in a quantum magnet. Specifically, we show that aspects of band topology protected by crystal...