High-resolution angle-resolved photoemission study of Ni(1 1 1) surface state

• Published in: Surface science Vol. 601; no. 18; pp. 4005 - 4009
• Main Authors: Higashiguchi, Mitsuharu, Shimada, Kenya, Arita, Masashi, Miura, Yuichi, Tobita, Naohisa, Cui, Xiaoyu, Aiura, Yoshihiro, Namatame, Hirofumi, Taniguchi, Masaki
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Lausanne Elsevier B.V 15-09-2007; Amsterdam Elsevier Science; New York, NY
• Subjects: Angle-resolved photoemission; Band dispersion; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Electron–electron interaction; Exact sciences and technology; Fermi surface; Physics; Surface state; Angle-resolved photoemission; Ni; Fermi surface; Band dispersion; Surface state; Electron–electron interaction; Angular resolution; Electron-electron interaction; Photoemission; Nickel; Electron-electron interactions; Surface states
• ISSN: 0039-6028; 1879-2758
• DOI: 10.1016/j.susc.2007.04.136

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.