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St. Laumann, R. Lackner, H. Michor, G. Hilscher, E. Bauer:
"Crystal electric field effects in Ce_1-xLa_xPt₃Si";
Physica B: Condensed Matter, 378-380 (2006), 386 - 387.

Crystal electric field effects in Ce_1-xLa_xPt₃Si

St. Laumann a, R. Lackner a, H. Michor a, G. Hilscher a and E. Bauer a

a Institute of Solid State Physics, Vienna University of Technology, A-1040 Wien, Austria

Available online 20 March 2006.

Abstract

Heat capacity studies performed on CePt₃Si and on Ce_0.2La_0.8Pt₃Si reveal Schottky-like contributions around 40-50 K, indicating that the first excited crystal electric field (CEF) level is well separated from the ground state doublet, in agreement with our previously performed inelastic neutron scattering experiments. This fact indicates that both, superconductivity and long range magnetic order are governed from a CEF wave function associated with a ground state doublet.

Keywords: CePt₃Si; Superconductivity; Antiferromagnetism; Crystal electric field splitting

PACS classification codes: 74.70.Tx; 71.27.+a; 75.30.Mb

http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC05938264

http://dx.doi.org/10.1016/j.physb.2006.01.534