Carbon, nitrogen doped with a rare earth, high temperature polyboride n-type thermoelectric materi

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PROBLEM TO BE SOLVED : To provide a rare earth multi-boride exhibiting a novel function having excellent n-type thermoelectric properties at high temperature (900 K or above). SOLUTION : A carbon, nitrogen doped rare earth multi-boride represented by general formula REB22+XC4+YN1+Z(-6COPYRIGHT : (C)2007, JPO&INPIT