Why is the Bandwidth of Sodium Observed to be Narrower in Photoemission Experiments?

H. Yasuhara, S. Yoshinaga, and M. Higuchi
Phys. Rev. Lett. 83, 3250 – Published 18 October 1999
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Abstract

The experimentally predicted narrowing in the bandwidth of sodium is interpreted in terms of the nonlocal self-energy effect on quasiparticle energies of the electron liquid. The calculated self-energy correction is an increasing function of the wave number variable. The usual analysis of angle-resolved photoemission experiments assumes the final-state energies on the nearly free-electron-like model and hence incorrectly ascribes the nonlocal self-energy correction to the final-state energies to occupied-state energies, seemingly leading to a narrowing in the bandwidth.

  • Received 13 May 1999

DOI:https://doi.org/10.1103/PhysRevLett.83.3250

©1999 American Physical Society

Authors & Affiliations

H. Yasuhara, S. Yoshinaga, and M. Higuchi

  • Department of Physics, Graduate School of Sciences, Tohoku University, Sendai 980-8578, Japan

Comments & Replies

Yasuhara, Yoshinaga, and Higuchi Reply:

Hiroshi Yasuhara, Sho Yoshinaga, and Masahiko Higuchi
Phys. Rev. Lett. 85, 2411 (2000)

Comment on “Why is the Bandwidth of Sodium Observed to be Narrower in Photoemission Experiments?”

Wei Ku, A. G. Eguiluz, and E. W. Plummer
Phys. Rev. Lett. 85, 2410 (2000)

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Vol. 83, Iss. 16 — 18 October 1999

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