Friedel oscillations in the one-dimensional Kondo lattice model

Naokazu Shibata, Kazuo Ueda, Tomotoshi Nishino, and Chikara Ishii
Phys. Rev. B 54, 13495 – Published 15 November 1996
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Abstract

The paramagnetic metallic phase of the one-dimensional Kondo lattice model is studied by the density matrix renormalization group method. We observe charge and spin Friedel oscillations. They reflect the long- range charge-charge and spin-spin correlation functions. The observed oscillations are consistent with a Tomonaga-Luttinger liquid. From the period of the oscillations it is concluded that the Fermi surface is large, including both the conduction electrons and the localized spins, kF=π(1+nc)/2, where nc is the density of conduction electrons. © 1996 The American Physical Society.

  • Received 30 July 1996

DOI:https://doi.org/10.1103/PhysRevB.54.13495

©1996 American Physical Society

Authors & Affiliations

Naokazu Shibata

  • Institute for Solid State Physics, University of Tokyo, 7-22-1 Roppongi, Minato-ku, Tokyo 106, Japan
  • Department of Physics, Faculty of Science, Science University of Tokyo, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162, Japan

Kazuo Ueda

  • Institute for Solid State Physics, University of Tokyo, 7-22-1 Roppongi, Minato-ku, Tokyo 106, Japan

Tomotoshi Nishino

  • Department of Physics, Graduate School of Science, Tohoku University, Sendai 980, Japan

Chikara Ishii

  • Department of Physics, Faculty of Science, Science University of Tokyo, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162, Japan

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Vol. 54, Iss. 19 — 15 November 1996

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