Orbital Dependence of the Fermi Liquid State in Sr2RuO4

T. E. Kidd, T. Valla, A. V. Fedorov, P. D. Johnson, R. J. Cava, and M. K. Haas
Phys. Rev. Lett. 94, 107003 – Published 16 March 2005

Abstract

We have used angle-resolved photoemission spectroscopy to determine the bulk electronic structure of Sr2RuO4 above and below the Fermi liquid crossover near 25 K. Our measurements indicate that the properties of the system are highly orbital dependent. The quasi-2D γ band displays Fermi liquid behavior while the remaining low energy bands show exotic properties consistent with quasi-1D behavior. In the Fermi liquid state below 25 K, the γ band dominates the electronic properties, while at higher temperatures the quasi-1D β and α bands become more important.

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  • Received 24 November 2004

DOI:https://doi.org/10.1103/PhysRevLett.94.107003

©2005 American Physical Society

Authors & Affiliations

T. E. Kidd, T. Valla, A. V. Fedorov*, and P. D. Johnson

  • Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA

R. J. Cava and M. K. Haas

  • Department of Chemistry and Princeton Materials Institute, Princeton University, Princeton, New Jersey 08540, USA

  • *Present address: Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA.

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Issue

Vol. 94, Iss. 10 — 18 March 2005

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