First Principles Calculation of the Crystal Field Splitting in Rare Earth Borocarbides |
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Authors: | M. Diviš J. Rusz G. Hilscher H. Michor P. Blaha K. Schwarz |
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Affiliation: | (1) Department of Electronic Structures, Charles University, Ke Karlovu 5, 121 16 Praha 2, Czech Republic;(2) Vienna University of Technology, Karlsplatz 13, A-1040 Wien, Austria |
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Abstract: | The crystal field (CF) interaction was calculated from first principles for the RNi2B2C (R = Pr, Nd, Sm and Er) borocarbides. The parameters of the CF hamiltonian were used to obtain the CF splitting of the ground state multiplets of the R3+ ions. This allows a comparison of the calculated specific heat of NdNi2B2C with the experiment yielding qualitatively good agreement. |
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Keywords: | rare earth borocarbides crystal field |
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