6 citations · 17 across the 16 of their papers we have counts for
16 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…
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 symm…
Raman scattering from moiré phonons
Vitor Dantas, Héctor Ochoa, Rafael M. Fernandes +1
We develop a theoretical framework for probing moiré phonon modes using Raman spectroscopy, and illustrate it with the example of twisted bilayer graphene (TBG). These moiré phonon…
Spin-strain interactions under hydrostatic pressure in -RuCl
A. Hauspurg, Susmita Singh, T. Yanagisawa +5
We investigate the effects of hydrostatic pressure on -RuCl, a prototypical material for the Kitaev spin model on a honeycomb lattice with a possible spin-liquid ground stat…
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…
Magnetic order through Kondo coupling to quantum spin liquids
M. A. Keskiner, M. Ö. Oktel, Natalia B. Perkins +1
We study the emergence of magnetic order in localized spins that interact solely through their coupling to a Kitaev-type spin liquid. Using three toy models -- the Kitaev model, th…
Ferrimagnetic Kitaev spin liquids in mixed spin 1/2 spin 3/2 honeycomb magnets
Willian Natori, Yang Yang, Hui-Ke Jin +2
We explore the potential experimental realization of the mixed-spin Kitaev model in materials such as ZrRuCl, where spin-1/2 and spin-3/2 ions occupy distinct s…
flux binding to higher-spin impurities in the Kitaev spin liquid
Masahiro O. Takahashi, Wen-Han Kao, Satoshi Fujimoto +1
Stabilizing fluxes in Kitaev spin liquids (KSLs) is crucial for both characterizing candidate materials and identifying Ising anyons. In this study, we investigate the effect…
Signatures of fractionalization in the optical phonons of hyperhoneycomb Kitaev magnet -LiIrO
Swetlana Swarup, Susmita Singh, Natalia B. Perkins
In this study, we propose that the signatures of spin fractionalization in quantum magnets can be identified through a detailed analysis of the temperature dependence of the asymme…
Phonon Dynamics in the Chiral Kitaev Spin Liquid
Susmita Singh, P. Peter Stavropoulos, Natalia B. Perkins
We investigate the effect of a magnetic field on the extended Kitaev spin liquid state through phonon dynamics. Using a constrained fermionic self-consistent mean field method, we…
Phonon dynamics in the site-disordered Kitaev spin liquid
Vitor Dantas, Wen-Han Kao, Natalia B. Perkins
The Kitaev honeycomb model provides a paradigmatic example of an exactly solvable quantum spin liquid (QSL), in which the spin degrees of freedom fractionalize into itinerant Major…
Topological transitions in the Yao-Lee spin-orbital model and effects of site disorder
Vladislav Poliakov, Wen-Han Kao, Natalia B. Perkins
The Yao-Lee model is an example of exactly solvable spin-orbital models that are generalizations of the original Kitaev honeycomb model with extra local orbital degrees of freedom.…
Dynamics of vacancy-induced modes in the non-Abelian Kitaev spin liquid
Wen-Han Kao, Gábor B. Halász, Natalia B. Perkins
We study the dynamical response of vacancy-induced quasiparticle excitations in the site-diluted Kitaev spin liquid with a magnetic field. Due to the flux-binding effect and the em…