Overall, κ total shows a decreasing trend from ∼1.2–1.4 W mK −1 at room temperature to below 0.5 W mK −1 at 800 K, mainly due to the suppression of κ l which supports high zT by maintaining a strong thermal gradient. 3.5.4.
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Half-metallic ferromagnetism and thermoelectric-efficient behavior in chalcogenide spinels MgNi<sub>2</sub>X<sub>4</sub> (X = S, Se): a first-principles approach.
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