Abstract
In article 1704233, Xiaojia Wang and co-workers demonstrate that single crystal La0.5Sr0.5CoO3−δ films possess a glass-like thermal conductivity through their plane. A combination of oxygen vacancies, Sr distribution, size effect, and weak electron/phonon coupling causes this effect. This discovery opens possibilities for tuning the thermal properties of perovskite thin films by manipulating heat carriers via structural/defect engineering at the atomic level.
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