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Titlebook: Electron-Electron Correlation Effects in Low-Dimensional Conductors and Superconductors; Alexandr. A. Ovchinnikov,Ivan I. Ukrainskii Confe

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書(shū)目名稱Electron-Electron Correlation Effects in Low-Dimensional Conductors and Superconductors
編輯Alexandr. A. Ovchinnikov,Ivan I. Ukrainskii
視頻videohttp://file.papertrans.cn/307/306186/306186.mp4
叢書(shū)名稱Research Reports in Physics
圖書(shū)封面Titlebook: Electron-Electron Correlation Effects in Low-Dimensional Conductors and Superconductors;  Alexandr. A. Ovchinnikov,Ivan I. Ukrainskii Confe
描述Advances in the physics and chemistry of low-dimensional systems have been really magnificent in the last few decades. Hundreds of quasi-one-dimensional and quasi-two-dimensional systems have been synthesized and studied. The most popular representatives of quasi-one-dimensional materials are polyacethylenes CH [1] and conducting donor-acceptor molecular crystals TIF- z TCNQ. Examples of quasi-two-dimensional systems are high temperature su- perconductors (HTSC) based on copper oxides LA2CU04, YBa2Cu306+y and organic superconductors based on BEDT -TIP molecules. The properties of such one- and two-dimensional materials are not yet fully understood. On the one hand, the equations of motion of one-dimensional sys- tems are rather simple, which facilitates rigorous solutions of model problems. On the other hand, manifestations of various interactions in one-dimensional systems are rather peculiar. This refers, in particular, to electron--electron and electron-phonon interactions. Even within the limit of a weak coupling con- stant electron--electron correlations produce an energy gap in the spectrum of one-dimensional metals implying a Mott transition from metal to semiconductor state
出版日期Conference proceedings 1991
關(guān)鍵詞Magnetismus; Optik; Polyacethylen; Polyacethylene; Quantenkinetik; Superconductivity; Supraleitung; high Tc
版次1
doihttps://doi.org/10.1007/978-3-642-76753-1
isbn_softcover978-3-540-54248-3
isbn_ebook978-3-642-76753-1Series ISSN 0939-7426
issn_series 0939-7426
copyrightSpringer-Verlag Berlin Heidelberg 1991
The information of publication is updating

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Mean-Field Study of Possible Electronic Pairings in the CuO Plane of HTSOd by local short range attractive interaction [2]. The aim of this paper is to study the possible origin of this attraction. From this point all local interactions of the electronic . orbits of adjacent atoms in CuO. plane are classified and analyzed in terms of the MF theory for the upper band in t
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Kink Nature of Current Carriers in High-,, Superconductor-Oxides-O and Y-Ba-Cu-O types [1, 2]. Some properties of HTS still remain unclarified. In particular several different mechanisms and model of current carriers have been proposed: band conductivity, polaron model, holon mechanism, kink model and so on.
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Coexistence of Mott and Peierls Instabilities in Quasi-One-Dimensional Organic Conductorsoreticians and experimentators (see Review [2]). This interest, on the one hand, is due to advances in synthesis of polyacetylene (PA) polydiacetylene (PDA), organic crystalline conductors based on6 molecular donors and acceptor of electron [2]. On the other hand, one-dimensional (1-d) conductors ar
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Dynamical Correlation in Finite Polymethine Chainsic compounds can be interpreted in terms of intermediates between three ideal states: the aromatic state, the polyene state and the polymethine state. All these three states are realized in finite polymethine cyclic or open chains, which contain a methine group CH as elementary link and arbitrary te
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發(fā)表于 2025-3-23 08:43:42 | 只看該作者
Electronic Structure and Optical Spectra of Transition Metal Complexes via the Effective Hamiltonian and electronic structure of ligand sphere for transition metal complexes is described. The technique is characterized by the use of variation wave function which differs from Hartree-Fock antisymmetrized product of molecular orbitals of the whole complex. The method is applied to the calculation of
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