196 citations · 2.6k across the 56 of their papers we have counts for
4 papers · 1 filter
Compatible orders and fermion-induced emergent symmetry in Dirac systems
Lukas Janssen, Igor F. Herbut, Michael M. Scherer
We study the quantum multicritical point in a (2+1)-dimensional Dirac system between the semimetallic phase and two ordered phases that are characterized by anticommuting mass term…
Critical behavior of the QED-Gross-Neveu model: Duality and deconfined criticality
Lukas Janssen, Yin-Chen He
We study the critical properties of the QED-Gross-Neveu model with flavors of two-component Dirac fermions coupled to a massless scalar field and a U(1) gauge field. For $…
Magnetization processes of zigzag states on the honeycomb lattice: Identifying spin models for -RuCl and NaIrO
Lukas Janssen, Eric C. Andrade, Matthias Vojta
We study the field-induced magnetization processes of extended Heisenberg-Kitaev models on the honeycomb lattice, taking into account off-diagonal and longer-range exchange interac…
Field-induced quantum criticality in the Kitaev system -RuCl
A. U. B. Wolter, L. T. Corredor, L. Janssen +9
-RuCl has attracted enormous attention since it has been proposed as a prime candidate to study fractionalized magnetic excitations akin to Kitaev's honeycomb-lattice spin l…