Correlation effects, circular dichroism, and Fermi surfaces of bulk nickel from soft x-ray angle-resolved photoemission

J. Braun, J. Minár, H. Ebert, Ashish Atma Chainani, J. Miyawaki, Y. Takata, M. Taguchi, M. Oura, S. Shin

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10 Citations (Scopus)

Abstract

Within this soft x-ray photoemission study we present a detailed experimental and theoretical view on the bulk-related electronic structure of ferromagnetic nickel. Our results resolve the long-standing issue of the Fermi surfaces of bulk Ni and thereby establish the validity of a local correlation picture for its electronic structure. We performed complementary theoretical and experimental soft x-ray angle-resolved photomission spectroscopy studies to determine the Fermi surfaces and correlation effects in the bulk states of Ni. The electronic structure, obtained from the local-spin density approximation with dynamical mean-field theory and one-step photoemission calculations including matrix elements, is based on a fully relativistic treatment using a complex and energy-dependent self-energy Σ(E). The experimental band dispersions, the circular dichroism in the spectral functions, and the experimentally extracted self-energy Σ(E) are in agreement with theoretical findings.

Original languageEnglish
Article number165105
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume85
Issue number16
DOIs
Publication statusPublished - 2012 Apr 5

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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