Publication
Physical Review Letters
Paper

Observation of a Λ1-symmetry surface state on Ni(111)

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Abstract

An s-p-like intrinsic surface state on Ni(111) has been found which has an energy of Ei=-0.25 eV relative to the Fermi energy at Γ̄ and lies between the L3 (Ei-0.15 eV) and L2′ (Ei=-0.9 eV) bulk states. Its momentum dispersion (E vs k→) and hν-dependent photoionization cross section have been determined using angle-resolved photoemission with synchrotron radiation. The existence of this state significantly affects spin-polarized photoemission, chemisorption, band-structure, and exchange-splitting interpretations for Ni. © 1978 The American Physical Society.

Date

14 Aug 1978

Publication

Physical Review Letters

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