1 8 M ay 2 00 3 Quadrupolar interactions in Pr compounds : PrFe 4 P 12 and PrBa 2 Cu
نویسنده
چکیده
We examine Pr crystal field models with near-degeneracy of the two lowest crystal field levels, where interaction-induced quadrupolar and dipolar moments are as important as the permanent moments of the crystal field ground state. We find that the Γ1–Γ4 level scheme yields a successful description of the antiferroquadrupolar ordering of PrFe4P12. For PrBa2Cu3O6, we argue that quadrupolar interaction is important for understanding the Pr ordering transition at 11K.
منابع مشابه
Quadrupolar interactions in Pr compounds : PrFe 4 P 12 and PrBa 2 Cu 3 O 6
We examine Pr crystal field models with near-degeneracy of the two lowest crystal field levels, where interaction-induced quadrupolar and dipolar moments are as important as the permanent moments of the crystal field ground state. We find that the Γ1–Γ4 level scheme yields a successful description of the antiferroquadrupolar ordering of PrFe4P12. For PrBa2Cu3O6, we argue that quadrupolar intera...
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