X-ray magnetic circular dichroism probe of the Rh magnetic moment instability in Fe1-xRhx alloys near the equiatomic concentration

摘要

X-ray magnetic circular dichroism (XMCD) measurements performed at the Rh L-2,L-3 edges and Fd L-3 edge in Fe0.51Rh0.49 and Fe-1.005(Rh0.85Pd0.15)(0.995) evidence the instability of the Rh magnetic moment (mu(Rh)) through the ferromagnetic-antiferromagnetic transition and demonstrate the induced nature of both mu(Rh), and mu(Pd). In the case of Fe0.51Rh0.49 these experiments have also revealed the existence of a ferromagnetic ground state at low temperatures in which mu(Rh)similar to 0.7 mu(B). [S0163-1829(99)11605-9]. [References: 22]