Magnetic properties of Heusler alloys Ru2−xFexCrGe

Polycrystalline samples of Hensler alloys Ru-2 xFexCrGe with L2(1) structure were prepared for 0 <= x <= 1. 50. Magnetic measurements show that the samples with 0.25 <= x <= 1.50 are ferromagnets. The Curie temperature increases with increasing the concentration x. Similarly, the spontaneous magnetic moment per formula unit, mu(s), at 4.5 K increases linearly with x. The experimental results are compared with predictions from first-principles band calculations. (c) 2006 Elsevier B.V. All rights reserved.