26 citations · 74 across the 9 of their papers we have counts for
9 papers
Nematostriction in frustrated two-dimensional Heisenberg models
Olav F. Syljuåsen, Jens Paaske
We investigate the nematic phase transition in the Heisenberg --model on square and triangular lattices, accounting for finite lattice compressibility and bond-length-dep…
Dynamical instability in a Floquet-Driven Dissipative System
Takuya Okugawa, Jens Paaske, Martin Eckstein +3
We analyse the magnon spectrum and distribution function of the antiferromagnetic phase of the Floquet-driven Hubbard model. Above a critical drive strength, we find a dynamical in…
Interplay between Magnetic and Vestigial Nematic Orders in the Layered - Classical Heisenberg Model
Olav F. Syljuåsen, Jens Paaske, Michael Schecter
We study the layered - classical Heisenberg model on the square lattice using a self-consistent bond theory. We derive the phase diagram for fixed as a function of…
Strain-enhanced optical absorbance of topological insulator films
Mathias Rosdahl Brems, Jens Paaske, Anders Mathias Lunde +1
Topological insulator films are promising materials for optoelectronics due to a strong optical absorption and a thickness dependent band gap of the topological surface states. The…
The antiferromagnetic phase of the Floquet-driven Hubbard model
Nicklas Walldorf, Dante M. Kennes, Jens Paaske +1
A saddle point plus fluctuations analysis of the periodically driven half-filled two-dimensional Hubbard model is performed. For drive frequencies below the equilibrium gap, we fin…
Cooper Pair Induced Frustration and Nematicity of Two-Dimensional Magnetic Adatom Lattices
Michael Schecter, Olav F. Syljuåsen, Jens Paaske
We propose utilizing the Cooper pair to induce magnetic frustration in systems of two-dimensional (2D) magnetic adatom lattices on s-wave superconducting surfaces. The competition…
Nematic Bond Theory of Heisenberg Helimagnets
Michael Schecter, Olav. F. Syljuåsen, J. Paaske
We study classical two-dimensional frustrated Heisenberg models with generically incommensurate groundstates. A new theory for the spin-nematic "order by disorder" transition is de…
Symmetry analysis of strain, electric and magnetic fields in the -class of topological insulators
Mathias Rosdahl Jensen, Jens Paaske, Anders Mathias Lunde +1
Based on group theoretical arguments we derive the most general Hamiltonian for the -class of materials including terms to third order in the wave vector, f…
Tunable magnetic anisotropy from higher-harmonics exchange scattering on the surface of a topological insulator
Jens Paaske, Erikas Gaidamauskas
We show that higher-harmonics exchange scattering from a magnetic adatom on the surface of a three dimensional topological insulator leads to a magnetic anisotropy whose magnitude…