Band Structure and Band-Gap Effects for Photoelectron Spin Polarization of Ferromagnetic Metals
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The electron spin polarization (ESP) in photoemisson is investigated on the basis of a one-dimensional model for ferromagnetic metals in order to elucidate the vand structure and the band-gap effects for this problem. Discussion is particularly made about the exchange splitting and the difference of related matrix elements for up and down spin electrons. It is shown that the surface effect involved both in the interband transition and in the transition to the gap states, which is of a nondirect nature, is imprtan for positive ESP. ESP of Ni metal is briefly discussed in connection with the present mpdel.
- 社団法人日本物理学会の論文
- 1974-07-15
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