Spin Gap in CaV4O9: a Large S Appraoch
Marc Albrecht, Frederic Mila
TL;DR
This paper investigates the stability of plaquette order in CaV4O9 using Schwinger boson mean field theory and exact diagonalization, providing insights into the spin gap phenomenon.
Contribution
It introduces a Schwinger boson mean field approach to analyze the stability of plaquette order in CaV4O9, offering a new theoretical perspective.
Findings
All relevant orders are described within the Schwinger boson framework
Predictions on the relative stability of different orders
Comparison with exact diagonalization results
Abstract
We study the stability of the 4-site plaquette order in a model recently introduced by Katoh and Imada to explain the spin gap in CaV4O9. We show that all relevant types of order can be described within the framework of Schwinger boson mean fiel theory, and we make predictions regarding their relative stability. The results are compared to exact diagonalisation of finite cluster.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsAdvanced Condensed Matter Physics · Crystal Structures and Properties · Inorganic Fluorides and Related Compounds