Chiral spin-liquid-like state in pyrochlore iridate thin films.

ABSTRACT: The pyrochlore iridates have become ideal platforms to unravel fascinating correlated and topological phenomena that stem from the intricate interplay among strong spin-orbit coupling, electronic correlations, lattice with geometric frustration, and itinerancy of the 5d electrons. The all-in-all-out antiferromagnetic state, commonly considered as the magnetic ground state, can be dramatically altered in reduced dimensionality, leading to exotic or hidden quantum states inaccessible in bulk. Here, by means of magnetotransport, resonant elastic and inelastic x-ray scattering experiments, we discover an emergent quantum disordered state in (111) Y₂Ir₂O₇ thin films (thickness ≤30 nm) persisting down to 5 K, characterized by dispersionless magnetic excitations.

SUBMITTER: Liu X 

PROVIDER: S-EPMC11604939 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature