English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The strong coupling between spin, lattice and electronic degrees of freedomin magnetic materials can produce interesting phenomena, including multiferroicand magnetodielectric (MD) behavior, and exotic coupled excitations, such aselectromagnons. We present a temperature- and magnetic-field-dependentinelastic light (Raman) scattering study that reveals the emergence of vibronicmodes, i.e., coupled vibrational and crystal-electric-field (CEF) electronicexcitations, in the unconventional rare-earth MD material,$\text{Ce}_2\text{O}_3$. The energies and intensities of these emergentvibronic modes are indicative of enhanced vibronic coupling and increasedmodulation of the dielectric susceptibility in the N\'eel state ($T_\text{N}\approx 6.2\,\text{K}$). The field-dependences of the energies and intensitiesof these vibronic modes are consistent with a decrease of both the vibroniccoupling and the dielectric fluctuations associated with these modes below$T_\text{N}$. These results suggest a distinctive mechanism for MD behavior in$\text{Ce}_2\text{O}_3$ that is associated with a field-tunable couplingbetween CEF and phonon states.

Emergent Vibronic Excitations in the Magnetodielectric Regime of $\text{Ce}_2\text{O}_3$: Raman Scattering Studies