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Publications in Scientific Journals:

H. Michor, M. El-Hagary, M. Della Mea, M. Pieper, M. Reissner, G. Hilscher, S. Khmelevskyi, P. Mohn, G. Schneider, G. Giester, P. Rogl:
"Itinerant electron metamagnetism in LaCo9Si4";
Physical Review B, 69 (2004), 081404-1 - 081404-4.



English abstract:
Itinerant electron metamagnetism in LaCo9Si4

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

(Received 19 December 2003; published 18 February 2004)

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 H [[perpendicular]] c, which is the lowest value ever found for rare earth intermetallic compounds. In the ferromagnetic state there appears a moment of about 0.2 B/Co at the 16k Co-sites, but significantly smaller moments at the 4d and 16l Co-sites. 2004 The American Physical Society


Electronic version of the publication:
http://link.aps.org/abstract/PRB/v69/e081404


Created from the Publication Database of the Vienna University of Technology.