MAGNETICALLY ORDERED MATERIALS;
ELECTRONIC BAND STRUCTURE;
PHASE TRANSITION;
PHOTOELECTRON SPECTROSCOPY;
D O I:
10.1016/0038-1098(95)00088-7
中图分类号:
O469 [凝聚态物理学];
学科分类号:
070205 ;
摘要:
We have measured spin- and angle-resolved valence-band photoemission (SARPES) spectra of ferromagnetic Ni(110) near X- and K-points in the Brillouin zone at various temperatures between T/Tc=0.5 and 1.05. The spectral features were analyzed based on the assumption that they could-be reduced into two components which show collapsing and noncollapsing behaviors. The results show that the observed. wavevector dependence of the SARPES spectra is consistent with the one expected by the local band theory.