10 papers
Quantum spin-glass criticality in disordered frustrated dimer magnets
Darshan G. Joshi, Matthias Vojta
The paper investigates the quantum phase transition between a spin‑glass phase and a dimer quantum paramagnet in a disordered triangular‑lattice bilayer Heisenberg model, using bon…
Unveiling Magnetic Frustration via the Elastocaloric Effect
Eric C. Andrade, Pedro M. Cônsoli, Matthias Vojta
Motivated by experimental progress in pressure and strain tuning of quantum materials, we examine the thermodynamic response of frustrated magnets to uniaxial strain. Specifically,…
Field-driven phases in a three-dimensional twisted Kitaev model for CoNbO: Interplay of frustration and spin-orbit coupling
Tom Drechsler, Matthias Vojta
The Ising chain in a transverse field stands out as a paradigmatic example for a quantum phase transition. CoNbO has been discussed as a material realization of this physic…
Quantum Coulomb Liquids of Different Rank in the Breathing Pyrochlore Antiferromagnet
Lasse Gresista, Daniel Lozano-Gómez, Daniel Lozano-Gómez +3
Emergent gauge fields and Coulomb liquids have long been central to the physics of frustrated pyrochlore magnets, yet their realization beyond conventional, i.e. rank-1 , spi…
Classical spin liquids from frustrated Ising models in hyperbolic space
Fabian Köhler, Johanna Erdmenger, Roderich Moessner +1
Antiferromagnetic Ising models on frustrated lattices can realize classical spin liquids, with highly degenerate ground states and, possibly, fractionalized excitations and emergen…
Fragility of local moments against hybridization with flat bands
Max Fischer, Arianna Poli, Lorenzo Crippa +6
The Kondo screening of a localized magnetic moment crucially depends on the spectral properties of the electronic bath to which it is coupled. Unlike textbook examples, realistic s…