12 papers
Excitonic Magnetism in Ruthenium Pyrochlores
Swetlana Swarup, Yang Yang, Natalia B. Perkins
Strong spin-orbit coupling in systems is expected to stabilize a nonmagnetic singlet ground state, yet many ruthenium pyrochlores exhibit robust long-range magnetic ord…
All-In-All-Out Pyrochlore Iridates as Noncollinear Spin-Orbit Coupled Counterparts of Altermagnets
Yang Yang, Turan Birol, Rafael M. Fernandes +1
Altermagnets are collinear magnetically ordered states that exhibit momentum-dependent spin splitting in the absence of net magnetization and spin-orbit coupling (SOC). Related spi…
Raman Circular Dichroism and Quantum Geometry of Chiral Quantum Spin Liquids
Eduard Koller, Valentin Leeb, Natalia B. Perkins +1
We show that the quantum geometry of fractionalized spin excitations in Mott-insulating quantum spin liquids (QSL) gives rise to a finite Raman circular dichroism (RCD) signal. We…
Impurity quadrupole moments as local probes of flux sectors in the Kitaev spin liquid
Masahiro O. Takahashi, Wen-Han Kao, Satoshi Fujimoto +1
Emergent fluxes play a central role in the low-energy properties of quantum spin liquids (QSLs), where they encode the underlying gauge structure and fractionalization of spins. He…
Majorana Signatures in Planar Tunneling through a Kitaev Spin Liquid
Weiyao Li, Vitor Dantas, Wen-Han Kao +1
We propose a planar tunneling setup to probe vacancy-bound Majorana modes in the chiral Kitaev spin liquid. In this geometry, the inelastic tunneling conductance can be expressed d…
Spin-lattice coupling induced chiral phonons and their signature in Raman Circular Dichroism
Eduard Koller, Swetlana Swarup, Johannes Knolle +1
Recent Raman experiments on the Kitaev material -RuCl have reported a finite Raman circular dichroism (RCD), revealing chiral phonon behaviour not expected from lattice sym…