NaV2O5as a Quarter-Filled Ladder Compound
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چکیده
منابع مشابه
0 Effective Charge and Spin Hamiltonian for the Quarter - Filled Ladder Compound α ′ - NaV 2 O 5
An effective intra-and inter-ladder charge-spin hamiltonian for the quarter-filled ladder compound α ′-NaV 2 O 5 has been derived by using the standard canonical transformation method. In the derivation, it is clear that a finite inter-site Coulomb repulsion is needed to get a meaningful result otherwise the perturbation becomes ill-defined. Various limiting cases depending on the values of the...
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A theory of superexchange in the mixed valent layer compound NaV2O5 is presented which provides a consistent description of exchange both in the disordered and charge ordered state. Starting from results of band structure calculations for NaV2O5 first an underlying electronic model for a ladder unit in the Trellis lattice is formulated. By using the molecular orbital representation for intra-ru...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1998
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.80.5164