Band structure calculation and Fermi surfaces for LaRh3B2

Abstract The band structure and Fermi surfaces for hexagonal LaRh 3 B 2 , which is a non-f reference material of CeRh 3 B 2 , are calculated by using an FLAPW method. CeRh 3 B 2 is a ferromagnetic material with the high Curie temperature of 115 K and the small magnetic moment. Quasi one-dimensional Fermi surfaces due to the strong hybridisation along the c -axis underlie the anomalous magnetism in the system.