NMR evidence against a spin-nematic nature of the presaturation phase in the frustrated magnet SrZnVO(PO4)2 - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review B Année : 2022

NMR evidence against a spin-nematic nature of the presaturation phase in the frustrated magnet SrZnVO(PO4)2

Résumé

Using 31P nuclear magnetic resonance (NMR) we investigate the recently discovered presaturation phase in the highly frustrated two-dimensional spin system SrZnVO(PO4)2 [F. Landolt et al., Phys. Rev. B 104, 224435 (2021)]. Our data provide two pieces of evidence against the presumed spin-nematic character of this phase: i) NMR spectra reveal that it hosts a dipolar spin order and ii) the 1/T1 relaxation rate data recorded above the saturation field can be fitted by the sum of a single-magnon term, exponential in the gap, and a critical second-order term, exponential in the triple gap, leaving no space for a nematic spin dynamics, characterized by a double-gap exponential. We explain the unexpectedly broad validity of the simple fit and the related critical spin dynamics.

Dates et versions

hal-03671688 , version 1 (18-05-2022)

Identifiants

Citer

K. M. Ranjith, F. Landolt, S. Raymond, A. Zheludev, M. Horvatić. NMR evidence against a spin-nematic nature of the presaturation phase in the frustrated magnet SrZnVO(PO4)2. Physical Review B, 2022, 105 (13), pp.134429. ⟨10.1103/PhysRevB.105.134429⟩. ⟨hal-03671688⟩
34 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More