Low-energy magnetic excitations in the quasi-one-dimensional spin-1 chain compound SrNi2V2O8

TL;DR

This study uses multi-frequency ESR to investigate magnetic excitations in SrNi2V2O8, revealing temperature-dependent resonance modes and single-ion anisotropy in a quasi-one-dimensional spin-1 chain compound.

Contribution

It provides new ESR measurements of magnetic excitations and anisotropy parameters in SrNi2V2O8, a quasi-one-dimensional spin-1 chain material.

Findings

Magnetic resonance modes observed above 50 K with g-factor of 2.24

Intra-triplet excitations detected below 30 K

Single-ion anisotropy D = -0.29 meV identified

Abstract

Multi-frequency electron spin resonance (ESR) transmission spectra have been measured as function of temperature and magnetic field on single crystals of the quasi-one-dimensional spin-1 chain compound SrNi2V2O8 in the GHz frequency range. Magnetic resonance modes above 50 K have been observed with an effective g-factor of 2.24 at 100 K. Below 30 K, intra-triplet excitations have been observed in the ESR spectra, which reveal the presence of single-ion anisotropy with D = -0.29 meV.