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Spontaneous Formation of Altermagnetism from Orbital Ordering
Valentin Leeb, Alexander Mook, Libor Šmejkal +1
Altermagnetism has emerged as a third type of collinear magnetism. In contrast to standard ferromagnets and antiferromagnets, altermagnets exhibit extra even-parity wave spin order…
Realizing Altermagnetism in Fermi-Hubbard Models with Ultracold Atoms
Purnendu Das, Valentin Leeb, Johannes Knolle +1
Altermagnetism represents a type of collinear magnetism, that is in some aspects distinct from ferromagnetism and from conventional antiferromagnetism. In contrast to the latter, s…
Signatures of Domain-Wall Confinement in Raman Spectroscopy of Ising Spin Chains
Stefan Birnkammer, Johannes Knolle, Michael Knap
Mesonic bound states of domain walls can be stabilized in quasi one-dimensional magnetic compounds. Here, we theoretically study the Raman light scattering response of a twisted Ki…
Interband scattering- and nematicity-induced quantum oscillation frequency in FeSe
Valentin Leeb, Johannes Knolle
Understanding the nematic phase observed in the iron-chalcogenide materials is crucial for describing their superconducting pairing. Experiments on FeSeS showed that on…
Single-hole spectra of Kitaev spin liquids: from dynamical Nagaoka ferromagnetism to spin-hole fractionalization
Wilhelm Kadow, Hui-Ke Jin, Johannes Knolle +1
The dynamical response of a quantum spin liquid upon injecting a hole is a pertinent open question. In experiments, the hole spectral function, measured momentum-resolved in angle-…
Kinetic Ferromagnetism and Topological Magnons of the Hole-Doped Kitaev Spin Liquid
Hui-Ke Jin, Wilhelm Kadow, Michael Knap +1
We study the effect of hole doping on the Kitaev spin liquid (KSL) and find that for ferromagnetic (FM) Kitaev exchange the system is very susceptible to the formation of a FM…