On the feasibility of studying surface magnetism by spin-polarized low-energy electron diffraction

Critical phenomena in the two-dimensional XY magnet Fe(100) on W(100)

“…21 P 0 A ex shows the same temperature and field dependence as the magnetization component M along the quantization axis. 11,22 The quantization axis was directed along one of the two in-plane easy axes-͓001͔ or ͓010͔. 23 In contrast to the temperature dependence of the hyperfine field B hf (T)ϰM (T), the proportionality P 0 A ex (H,T)ϰM (H,T) only holds in the direct vicinity of T C , i.e., for reduced temperature ͉͑t͉ϭ͉1ϪT/T C ͉Ͻ0.1͒.…”

Tunnel Spin-Polarization of Ferromagnetic Metals and Ferrimagnetic Oxides and Its Effect on Tunnel Magnetoresistance

“…A dynamical theory of spin-polarized low-energy electron diffraction from ferromagnetic surfaces proves that in the case of only single scattering, the polarization is proportional to the surface magnetization [24]. On the other hand, magnetization and spin polarization were proposed to have a similar temperature dependence [25] based on the fact that spin polarization scales approximately with the magnetic moment of the alloy as its composition is varied [26].…”

Role of spin exchange in elastic electron scattering from magnetic surfaces

“…For the reconstructed 0(2x 1) surface, the exchange contribution is suppressed with respect to the spin-orbit. To the extent that the exchange asymmetry reflects the surface magnetization, 10 we see that the Ni-0(2x 1) magnetization is greatly re- duced. This result is consistent with previous observations of the decrease of the spin polarization of secondary electrons.…”