Quadrupolar interactions in Pr compounds : PrFe 4 P 12 and PrBa 2 Cu 3 O 6
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 11K.
منابع مشابه
1 8 M ay 2 00 3 Quadrupolar interactions in Pr compounds : PrFe 4 P 12 and PrBa 2 Cu
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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