Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Mook, Alexander"'
Topological magnon insulators exhibit robust edge modes with chiral properties similar to quantum Hall edge states. However, due to their strong localization at the edges, interactions between these chiral edge magnons can be significant, as we show
Externí odkaz:
http://arxiv.org/abs/2410.05378
We present a theory of magnonic thermal Hall transport driven by many-body skew scattering. In field-polarized chiral magnets, the Dzyaloshinskii-Moriya interaction induces three-magnon interactions that violate time-reversal symmetry and interfere w
Externí odkaz:
http://arxiv.org/abs/2407.00423
We show that magnetic insulators with a collinear and compensated order can exhibit a thermal Hall effect even at zero magnetic field if they have altermagnetic symmetries. We predict a finite thermal Hall conductivity vector $\boldsymbol{\kappa}_\te
Externí odkaz:
http://arxiv.org/abs/2405.05090
Publikováno v:
Physical Review B 110, 024425 (2024)
We study two-dimensional $d$-wave altermagnetic metals taking into account the presence of substrate-induced Rashba spin-orbit coupling. We consider the altermagnet bandstructure using a 2D band Hamiltonian near the $\Gamma$ point under external magn
Externí odkaz:
http://arxiv.org/abs/2403.10509
Magnonic topological phases realize chiral edge spin waves that are protected against backscattering, potentially enabling highly efficient spin transport. Here we show that the spin transport through these magnonic chiral edge states can be electric
Externí odkaz:
http://arxiv.org/abs/2401.04967
Topological magnon insulators support chiral edge excitations, whose lack of electric charge makes them notoriously difficult to detect experimentally. We show that relativistic magnetoelectric coupling universally renders chiral edge magnons electri
Externí odkaz:
http://arxiv.org/abs/2312.12316
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 parameters resulting in a spin-splitting of electronic bands in momen
Externí odkaz:
http://arxiv.org/abs/2312.10839
Topological magnon insulators (TMI) are ordered magnets supporting chiral edge magnon excitations. These edge states are envisioned to serve as topologically protected information channels in low-loss magnonic devices. The standard description of TMI
Externí odkaz:
http://arxiv.org/abs/2308.03168
Publikováno v:
Phys. Rev. Lett. 131, 126601 (2023)
Topological bosonic excitations must, in contrast to their fermionic counterparts, appear at finite energies. This is a key challenge for magnons, as it prevents straightforward excitation and detection of topologically-protected magnonic edge states
Externí odkaz:
http://arxiv.org/abs/2302.06597
Autor:
Gohlke, Matthias, Corticelli, Alberto, Moessner, Roderich, McClarty, Paul A., Mook, Alexander
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 circumstances, may fail to implement the symmetries of the underlying
Externí odkaz:
http://arxiv.org/abs/2211.15157