Versatile electronic phases enabled by intertwined multiple frustrations in an antiferromagnetic two-dimensional semimetal.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 42493513.
- Also identified by DOI 10.1038/s41467-026-75048-y.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
Following the discovery of graphene, van der Waals materials have become a major platform for quantum matter, yet strongly interacting phases beyond graphene remain elusive. Using scanning tunneling microscopy and spectroscopy, we uncover three competing stripe- and checkerboard-type multiple-q antiferromagnetic charge-ordered states in the van der Waals semimetal CeTe<sub>3</sub>, beyond the conventional charge density wave. These field-tunable states exhibit propagation vectors of (0.33, 0), (0, 0.08), and (0.19, ±0.19), and are controlled by a modest in-plane magnetic field (~1.5 T). Quasiparticle-interference imaging identifies corresponding three distinct nesting channels and associated Fermi-surface reconstructions. At the same time, spectroscopy reveals a broad electronic reconstruction extending to ±30 meV around the Fermi level, beyond a simple Kondo-coupling picture. Our results establish CeTe<sub>3</sub> as a platform for tunable nanoscale antiferromagnetic electronic phases characterized by intertwined correlations, exotic symmetry-breaking, and nontrivial topology.