Hybridization-Switching Induced Mott Transition in ABO3 Perovskites
نویسندگان
چکیده
منابع مشابه
Mott transition and suppression of orbital fluctuations in orthorhombic 3d1 perovskites.
Using t(2g) Wannier functions, a low-energy Hamiltonian is derived for orthorhombic 3d(1) transition-metal oxides. Electronic correlations are treated with a new implementation of dynamical mean-field theory for noncubic systems. Good agreement with photoemission data is obtained. The interplay of correlation effects and cation covalency (GdFeO3-type distortions) is found to suppress orbital fl...
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ABO3-type perovskite oxides comprise a wide class of materials with numerous technological applications, ranging from optics to electrochemistry. The ideal perovskite structure is cubic, but this form usually exists only at high temperatures; while most perovskites have lower symmetry at room temperature and below. Oxygen vacancies are, perhaps, the most common intrinsic point defects observed ...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2019
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.122.016404