Crystal Field and Magnetoelastic Interactions in Tb2Ti2O7
Vera Klekovkina, Boris Malkin
TL;DR
This paper estimates crystal field and electron-deformation interaction parameters in Tb2Ti2O7 using a semi-phenomenological model, refined through various spectroscopic and elastic measurements, to understand its magnetoelastic properties.
Contribution
It provides a comprehensive set of parameters for crystal field and electron-deformation interactions in Tb2Ti2O7, refined through multiple experimental analyses.
Findings
Estimated crystal field parameters for Tb2Ti2O7
Refined electron-deformation interaction parameters
Correlated spectroscopic and elastic data
Abstract
In terms of a semi-phenomenological exchange charge model, we have obtained estimates of parameters of the crystal field and parameters of the electron-deformation interaction in terbium titanate Tb2Ti2O7 with a pyrochlore structure. The obtained set of parameters has been refined based on the analysis of spectra of neutron inelastic scattering and Raman light scattering, field dependences of the forced magnetostriction, and temperature dependences of elastic constants.
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