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Itinerant electron metamagnetism in LaCo9Si4

H. Michor, M. El-Hagary, M. Della Mea, M. W. Pieper, M. Reissner, G. Hilscher, S. Khmelevskyi, P. Mohn, G. Schneider, G. Giester, and P. Rogl
Phys. Rev. B 69, 081404(R) – Published 18 February 2004; Erratum Phys. Rev. B 69, 069903 (2004)
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Abstract

The strongly exchange enhanced Pauli paramagnet LaCo9Si4 is found to exhibit an itinerant metamagnetic phase transition with indications for metamagnetic quantum criticality. Our investigation comprises magnetic, specific heat, and nuclear magnetic resonance measurements as well as ab initio electronic structure calculations. The critical field is about 3.5 T for H||c and 6 T for Hc, which is the lowest value ever found for rare earth intermetallic compounds. In the ferromagnetic state there appears a moment of about 0.2μB/Co at the 16k Co-sites, but significantly smaller moments at the 4d and 16l Co-sites.

  • Received 19 December 2003

DOI:https://doi.org/10.1103/PhysRevB.69.081404

©2004 American Physical Society

Erratum

Editorial Note: Itinerant electron metamagnetism in LaCo9Si4 [Phys. Rev. B 69, 081404(R) (2004)]

H. Michor, M. El-Hagary, M. Della Mea, M. W. Pieper, M. Reissner, G. Hilscher, S. Khmelevskyi, P. Mohn, G. Schneider, G. Giester, and P. Rogl
Phys. Rev. B 69, 069903 (2004)

Authors & Affiliations

H. Michor*, M. El-Hagary, M. Della Mea, M. W. Pieper, M. Reissner, and G. Hilscher

  • Institut für Festkörperphysik, T.U. Wien, Wiedner Hauptstrasse 8–10, A-1040 Wien, Austria

S. Khmelevskyi, P. Mohn, and G. Schneider

  • Center for Computational Material Science, T.U. Wien, A-1040 Wien, Austria

G. Giester

  • Institut für Mineralogie und Kristallographie, Universität Wien, A-1090 Wien, Austria

P. Rogl

  • Institut für Physikalische Chemie, Universität Wien, Währingerstrasse 42, A-1090 Wien, Austria

  • *Electronic address: michor@ifp.tuwien.ac. at

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Vol. 69, Iss. 8 — 15 February 2004

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