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Parameters of the effective singlet-triplet model for band structure of high-T-c cuprates by alternative approaches / M. M. Korshunov [et al.]> // J. Exp. Theor. Phys. - 2004. - Vol. 99, Is. 3. - P. 559-565, DOI 10.1134/1.1809685. - Cited References: 48
. - ISSN 1063-7761РУБ Physics, Multidisciplinary Рубрики: DENSITY-FUNCTIONAL CALCULATION TIGHT-BINDING METHOD COPPER OXIDES ENERGY-BANDS SUPERCONDUCTORS HOLE LA2-XSRXCUO4 PLANE SR2CUO2CL2 INSULATORS Кл.слова (ненормированные): Band structure -- Carbon dioxide lasers -- Copper oxides -- Doping (additives) -- Parameter estimation -- Electron systems -- Generalized tight binding (GTB) -- Parameters extraction -- Singlet triplet model -- Technetium compounds Аннотация: We consider the problem of determining the parameters for high-T-c superconducting copper oxides. Alternative approaches, the ab initio LDA and LDA + U calculations and the generalized tight-binding (GTB) method for strongly correlated electron systems, are used to calculate hopping and exchange parameters of the effective singlet-triplet model for the CuO2 layer. The resulting parameters are in remarkably good agreement with each other and with parameters extracted from experiment. This set of parameters is proposed for proper quantitative description of the physics of hole-doped high-T-c cuprates in the framework of effective models. (C) 2004 MAIK "Nauka / Interperiodica".
WOS, Scopus, Читать в сети ИФ Держатели документа: Russian Acad Sci, Kirensky Inst Phys, Siberian Div, Krasnoyarsk 660036, Russia Russian Acad Sci, Inst Met Phys, Ural Div, Ekaterinburg 620219, Russia ИФ СО РАН Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation Institute of Metal Physics, Ural Division, Russian Academy of Sciences, Ekaterinburg, 620219, Russian Federation Доп.точки доступа: Korshunov, M. M.; Коршунов, Максим Михайлович; Gavrichkov, V. A.; Гавричков, Владимир Александрович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Pchelkina, Z. V.; Nekrasov, I. A.; Korotin, M. A.; Anisimov, V. I. } Найти похожие
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