Author/Authors :
Higashiguchi، نويسنده , , Mitsuharu and Shimada، نويسنده , , Kenya and Arita، نويسنده , , Masashi and Miura، نويسنده , , Yuichi and Tobita، نويسنده , , Naohisa and Cui، نويسنده , , Xiaoyu and Aiura، نويسنده , , Yoshihiro and Namatame، نويسنده , , Hirofumi and Taniguchi، نويسنده , , Masaki، نويسنده ,
Abstract :
High-resolution angle-resolved photoemission spectroscopy (ARPES) has been conducted to study the Shockley state (SS) in ferromagnetic Ni(1 1 1) located at the Γ ¯ point of the surface Brillouin zone. We have determined the Fermi wave vector and Fermi energy of the state with excitation photon energies of hν = 6.9–27.5 eV. On the basis of ARPES spectral shape analyses, we have found significant electron–electron interaction in the SS.
Keywords :
Fermi surface , Band dispersion , Surface state , 1) , Angle-resolved photoemission , 1 , Electron–electron interaction , Ni(1
