Year: 2024
Type: article
Abstract: The experimental characterization of quantum spin liquids poses significant challenges due to the absence of long-range magnetic order, even at absolute zero temperature. The identification of these states of matter often relies on the analysis of their excitations. In this paper, we propose a method for detecting the signatures of the fractionalized excitations in quantum spin liquids using a tunneling spectroscopy setup. Inspired by the recent development of the quantum twisting microscope, we consider a planar tunneling junction, in which a candidate quantum spin-liquid material is placed between two graphene layers. By tuning the relative twist angle and voltage bias between the leads, we can extract the dynamical spin structure factor of the tunneling barrier with momentum and energy resolution. Our proposal presents a promising tool for experimentally characterizing quantum spin liquids in two-dimensional materials.
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G1707509607, G222768804, G2522309537, G2595738051, G3234705470, Quantum dynamics in driven and disordered systems: Floquet topological control and flow methods for many body localization, STRONGLY CORRELATED ELECTRONIC SYSTEMS: LOCAL MOMENTS AND CONDUCTION ELECTRONS, G638484911, G657448715, STRONGLY CORRELATED ELECTRONIC SYSTEMS: LOCAL MOMENTS AND CONDUCTION ELECTRONS, Emergent Phenomena in Quantum Systems Theory Center, G7452299184, Programs on Critical Problems in Physics, Astrophysics and Biophysics at the Aspen Center for Physics, G8028718644, G9000022710
OpenAlex ID: W4390828544