Coherent Heavy Quasiparticles in a CePt5 Surface Alloy

M. Klein, A. Nuber, H. Schwab, C. Albers, N. Tobita, M. Higashiguchi, J. Jiang, S. Fukuda, K. Tanaka, K. Shimada, M. Mulazzi, F. F. Assaad, and F. Reinert
Phys. Rev. Lett. 106, 186407 – Published 6 May 2011
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    Abstract

    We report on the results of a high-resolution angle-resolved photoemission study on the ordered surface alloy CePt5. The temperature dependence of the spectra show the formation of the coherent low-energy heavy-fermion band near the Fermi level. These experimental data are supported by a multiband model calculation in the framework of the dynamical mean-field theory.

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    • Received 21 December 2010

    DOI:https://doi.org/10.1103/PhysRevLett.106.186407

    © 2011 American Physical Society

    Authors & Affiliations

    M. Klein1, A. Nuber1, H. Schwab1, C. Albers1, N. Tobita2, M. Higashiguchi2, J. Jiang2, S. Fukuda2, K. Tanaka2, K. Shimada3, M. Mulazzi1, F. F. Assaad4, and F. Reinert1,5,*

    • 1Universität Würzburg, Experimentelle Physik VII & Röntgen Research Center for Complex Materials RCCM, Am Hubland, D-97074 Würzburg, Germany
    • 2Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
    • 3Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-Hiroshima 739-0046, Japan
    • 4Universität Würzburg, Institut für Theoretische Physik und Astrophysik, Am Hubland, D-97074 Würzburg, Germany
    • 5Karlsruhe Institute of Technology KIT, Gemeinschaftslabor für Nanoanalytik, D-76021 Karlsruhe, Germany

    • *Corresponding author. reinert@physik.uni-wuerzburg.de

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    Vol. 106, Iss. 18 — 6 May 2011

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