Giant Magnetocaloric Effect in a Honeycomb Spiral Spin-Liquid Candidate.

ABSTRACT: Unlike conventional magnetic states, which lack degeneracy, the spiral spin liquid (SSL) fluctuates among degenerate spiral configurations, with ground-state wave vectors forming a continuous contour or surface in reciprocal space. At low temperatures, the field-induced crossover from the polarized ferromagnetic state to the SSL results in a large entropy increase and decalescence, indicating its potential for magnetic cooling. However, magnetic cooling using a SSL has yet to be reported. Here, the magnetocaloric effect and cooling performance of single-crystal GdZnPO, a spin-7/2 honeycomb-lattice SSL candidate, are investigated under a magnetic field H < H_c (µ₀H_c ∼ 12 T) applied perpendicular to the honeycomb plane and below the crossover temperature (∼2 K

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC12631906 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature