Work

Short-range spin freezing in the double trillium lattice spin-liquid candidate KSrFe 2 ( PO 4 ) 3 revealed via P 31 NMR

Year: 2025

Type: article

Abstract: The authors investigate here the double-trillium lattice antiferromagnet KSrFe${}_{2}$(PO${}_{4}$)${}_{3}$ using ${}^{31}$P NMR, thermodynamic measurements, and first-principles calculations to elucidate its unconventional ground state. Below the characteristic temperature $T$* ~ 3.5 K, the results reveal a short-range spin freezing state with persistent antiferromagnetic fluctuations, contradicting earlier proposals of a gapless spin-liquid state. A nearly field-independent NMR linewidth, strong enhancement of 1/${T}_{2}$ below $T$*, and sizeable antiferromagnetic exchange interactions collectively position KSrFe${}_{2}$(PO${}_{4}$)${}_{3}$ as a rare three-dimensional frustrated magnet hosting intertwined static and dynamic correlations.

Source: Physical review. B./Physical review. B

DOI: 10.1103/k3lw-2567

Authors: Sebin J. Sebastian, Q.-P. Ding, A. A. Tsirlin, R. Nath, Y. Furukawa

Institutions: Iowa State University, Ames National Laboratory, Leipzig University

Language: English

Topic: Advanced Condensed Matter Physics

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green