Magnetization measurement of Pd(100) using a spin-polarized metastable He beam and an electromagnet of 1.8kOe

Abstract Using a spin-polarized metastable helium ( He * ) beam, which is an extremely surface-sensitive spin probe, we made an attempt to detect the electron spin polarization for a clean Pd(1 0 0) surface which is often assumed to be ferromagnetic in nano-particle studies. The spin asymmetry in the total electron yield measured at 90 K with an external magnetic field of 1.5 kOe was however, less than 1 100 of that for a clean Fe surface.