Abstract
The structure and magnetic properties of FeAl1−xRhx alloys have been studied by X-ray, magnetization and Mössbauer effect measurements. The crystal structure of these alloys remains in B2 type. However, the solubility limits are rather narrow for both sides. On the Al-rich side, Rh atoms occupy the Fe site and a part of Fe atoms become magnetic. They freeze into a spin-glass state at low temperatures. On the Rh-rich side, Al atoms occupy the Fe site. The Al substitution stabilizes ferromagnetism, i.e., the Curie temperature increases and the antiferromagnetic to ferromagnetic transition temperature decreases.