Abstract
Abstract
The honeycomb Kitaev model describes a Z
2 spin liquid with topological order and fractionalized excitations consisting of gapped π-fluxes and free Majorana fermions. Competing interactions, even when not very strong, are known to destabilize the Kitaev spin liquid. Magnetic fields are a convenient parameter for tuning between different phases of the Kitaev systems, and have even been investigated for potentially counteracting the effects of other destabilizing interactions leading to a revival of the topological phase. Here we review the progress in understanding the effects of magnetic fields on some of the perturbed Kitaev systems, particularly on fractionalization and topological order.
Funder
Division of Materials Research
Department of Atomic Energy, Government of India
Florida State University