Destructive Interference of a Charge Density Wave in the Skyrmion Magnet GdRu2Si2
cond-mat.str-el
Submitted: 2026-10-12
Updated: 2026-10-12
License: http://creativecommons.org/licenses/by/4.0/
The gist: In skyrmion magnets, charge density waves induce higher-order exchange interactions that can select multi-Q ground states.
Abstract
In skyrmion magnets, charge density waves induce higher-order exchange interactions that can select multi-Q ground states. Using resonant X-ray scattering and neutron diffraction, we measure temperature-dependent spin-charge coupling in GdRu2Si2. A minimal Landau model with one critical exponent and two ordering temperatures reproduces all six observed order parameters. Spin-density wave components of the multi-Q ground state drive charge ordering, but the onset of a magnetic helix suppresses it via destructive interference.
Sources
Related papers
- Microscopic Constructions of the BF+AAB Topological Field Theory and Borromean-Rings Braiding in (3+1) Dimensions
- Transport in the emergent Bose liquid: Bad metal, strange metal, and weak insulator, all in one system
- Nature of magnetism in bilayer nickelate La3Ni2O7 single crystals
- Universal orbital and magnetic structures in infinite-layer nickelates
- Graph-Theoretic Formulation of Hamiltonian and Ground-State Sign Structures in Heisenberg Antiferromagnets
- NESSi 2.0: The Non-Equilibrium Systems Simulation package version 2.0