Related Experiment Video
Updated: Jul 7, 2026

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
Published on: March 24, 2019
Zero-energy states and fragmentation of spin in the easy-plane antiferromagnet on a honeycomb lattice
1Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6.
Abstract:
The core of the vortex in the Néel order parameter for an easy-plane antiferromagnet on a honeycomb lattice is demonstrated to bind two zero-energy states. Remarkably, a single electron occupying this midgap band has its spin fragmented between the two sublattices: Whereas it yields a vanishing total magnetization, it shows a finite Néel order, orthogonal to the one of the assumed background. The requisite easy-plane anisotropy may be introduced by a magnetic field parallel to the graphene layer, for example. The results are relevant for spin-1/2 fermions on the graphene's or optical honeycomb lattice, in the strongly interacting regime.
More Related Videos
Related Concept Videos
Atomic Nuclei: Nuclear Spin State Overview
Valence Bond Theory
Valence Bond Theory
Atomic Nuclei: Nuclear Spin State Population Distribution
The Pauli Exclusion Principle
Atomic Nuclei: Nuclear Relaxation Processes

