Magnetization and g Factor Measurements of Nickel-Palladium Alloys

Abstract

Saturation magnetization measurements of Ni‐Pd alloys show for a Pd concentration range $c$ , 0–50 at. %, a linear decrease of the mean atomic moment according to ${\mathrm{M\hspace{0.17em}=\hspace{0.17em}M}}_{\mathrm{Ni}}\text{−0.11c}$ , with $M_{\mathrm{Ni}}{\text{\hspace{0.17em}=\hspace{0.17em}0.616\hspace{0.17em}μ}}_{\mathrm{B}}$ . The extrapolated moment for Pd is ${\text{0.51\hspace{0.17em}μ}}_{\mathrm{B}}$ . Ferromagnetic resonance measurements at 35 GHz show a hyperbolic increase of the $g$ factor with Pd addition. The calculated spin moments vary linearly as $M_{\mathrm{sp}}{\text{\hspace{0.17em}=\hspace{0.17em}0.56−0.17}}_c$ , indicating 0.39 hole in the 4d band of Pd. The $g$ factor of Pd would be 2.58, indicating a non‐negligible orbital contribution.