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The field driven suppression of antiferroelectric fluctuations enhances phonon lifetimes along the electric field and yields threefold increase in thermal conductivity along this direction.
Scientific Achievement: Inelastic neutron scattering reveals a large electric-field-driven increase in thermal conductivity controlled by increased phonon lifetimes in a relaxor-based ferroelectric.
Significance and Impact: This research paves the way for developing solid-state thermal switching devices that enhance energy efficiency over a broad range of temperatures.
DOI: 10.1103/5d1z-wg4p
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