In addition to the binary semiconductors combining elements from Groups II, III, V and VI, there also exist other materials that adopt different structures using the transition metals.

The following materials all have the half-Heusler structure. This is a cubic structure and consists of four interpenetrating FCC lattices. Three of the lattice points are occupied by one of the elements whilst the fourth lattice consists of vacancies.

• CoTiSb [1]
• NiScSb [1]
• NiTiSn [1]
• LiBeN [2]

 

References:

1. J. J. Attema, G. A. de Wijs and R. A. de Groot, J. Phys. Cond. Matt, 19, 315212, (2007) 
2. L. H. Yu, K. L. Yao, Z. L. Liu and Y. S. Zhang, Phys. Lett. A, 367, 389-393, (2007)