149 citations · 480 across the 10 of their papers we have counts for
10 papers
Magnon Spectra of Cuprates beyond Spin Wave Theory
Jiahui Bao, Matthias Gohlke, Jeffrey G. Rau +1
The usual starting point for understanding magnons in cuprate antiferromagnets such as LaCuO is a spin model incorporating cyclic exchange, which descends from a one-band H…
Thermal pure matrix product state in two dimensions: tracking thermal equilibrium from paramagnet down to the Kitaev honeycomb spin liquid state
Matthias Gohlke, Atsushi Iwaki, Chisa Hotta
We present the first successful application of the matrix product state (MPS) representing a thermal quantum pure state (TPQ) in equilibrium in two spatial dimensions over almost t…
Extended Quantum Spin Liquid with Spinon-like Excitations in an Anisotropic Kitaev-Gamma Model
Matthias Gohlke, Jose Carlos Pelayo, Takafumi Suzuki
The characterization of quantum spin liquid phases in Kitaev materials has been a subject of intensive studies over the recent years, both theoretically and experimentally. Most th…
Spurious Symmetry Enhancement and Interaction-Induced Topology in Magnons
Matthias Gohlke, Alberto Corticelli, Roderich Moessner +2
Linear spin wave theory (LSWT) is the standard technique to compute the spectra of magnetic excitations in quantum materials. In this paper, we show that LSWT, even under ordinary…
Generic Field-Driven Phenomena in Kitaev Spin Liquids: Canted Magnetism and Proximate Spin Liquid Physics
Ciarán Hickey, Matthias Gohlke, Christoph Berke +1
Topological spin liquids in two spatial dimensions are stable phases in the presence of a small magnetic field, but may give way to field-induced phenomena at intermediate field st…
Emergence of a nematic paramagnet via quantum order-by-disorder and pseudo-Goldstone modes in Kitaev magnets
Matthias Gohlke, Li Ern Chern, Hae-Young Kee +1
The appearance of nontrivial phases in Kitaev materials exposed to an external magnetic field has recently been a subject of intensive studies. Here, we elucidate the relation betw…
Polarization Plateaus in Hexagonal Water Ice
Matthias Gohlke, Roderich Moessner, Frank Pollmann
The protons in water ice are subject to so called \emph{ice rules} resulting in an extensive ground state degeneracy. We study how an external electric field reduces this ground st…
Dynamical and Topological Properties of the Kitaev Model in a [111] Magnetic Field
Matthias Gohlke, Roderich Moessner, Frank Pollmann
The Kitaev model exhibits a Quantum Spin Liquid hosting emergent fractionalized excitations. We study the Kitaev model on the honeycomb lattice coupled to a magnetic field along th…
Quantum spin liquid signatures in Kitaev-like frustrated magnets
Matthias Gohlke, Gideon Wachtel, Youhei Yamaji +2
Motivated by recent experiments on -RuCl, we investigate a possible quantum spin liquid ground state of the honeycomb-lattice spin model with bond-dependent interactions. We…
Dynamics of the Kitaev-Heisenberg Model
Matthias Gohlke, Ruben Verresen, Roderich Moessner +1
We introduce a matrix-product state based method to efficiently obtain dynamical response functions for two-dimensional microscopic Hamiltonians, which we apply to different phases…