Fig. 3: Chemical bonding classification and schematic illustration of the design of microstructures by alloying materials with different chemical bonding mechanisms.
From: Doping strategy in metavalently bonded materials for advancing thermoelectric performance
a 2D map classifying chemical bonding in solids. The map is spanned by the electrons transferred (ET) normalized by the oxidation state and the electrons shared between adjacent atoms, and the different colors are employed to describe different chemical bonding mechanisms. Data are adapted from refs. 50,69,81. (b) Schematic illustration of the way to obtain a solid solution or phase separation by alloying materials with different bonding mechanisms.
