Samarium hexaboride is a Kondo insulator whose narrow samarium -derived states mix with more dispersive conduction states. It motivates effective models of band hybridization between a nearly flat band and a light dispersive band.
Samarium hexaboride (SmB6) is a compound composed of samarium, a rare-earth element, and boron. It crystallizes in a complex cubic structure and is noted for its notable electronic properties. SmB6 is particularly interesting to researchers because it exhibits behavior characteristic of a topological insulator. In its bulk form, SmB6 is an insulator at low temperatures, but it has metallic-like surface states that can conduct electricity.
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