Orbitally Driven Spin-Singlet Dimerization inS=1La4Ru2O10
نویسندگان
چکیده
منابع مشابه
Orbitally driven spin-singlet dimerization in S=1 La4Ru2O10.
Using x-ray absorption spectroscopy at the Ru-L2,3 edge we reveal that the Ru4+ ions remain in the S=1 spin state across the rare 4d-orbital ordering transition and spin-gap formation. We find using local spin density approximation + Hubbard U band structure calculations that the crystal fields in the low-temperature phase are not strong enough to stabilize the S=0 state. Instead, we identify a...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2006
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.96.256402