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Ovchinnikov, S. G. The Interplay of Phonon and Magnetic Mechanism of Pairing in Strongly Correlated Electron System of High-T-c Cuprates / S. G. Ovchinnikov, E. I. Shneyder> // J. Supercond. Nov. Magn. - 2010. - Vol. 23, Is. 5. - P. 733-736, DOI 10.1007/s10948-009-0633-z. - Cited References: 26. - This work is supported by the Presidium RAS program N 7 "Quantum physics of condensed matter," the integration project SORAN-UrORAN N 40, and the RFFI Grant 09-02-00127.
. - ISSN 1557-1939РУБ Physics, Applied + Physics, Condensed Matter Рубрики: PHASE-TRANSITIONS OXIDE SUPERCONDUCTORS SYMMETRY COPPER MODEL BAND BI2SR2CACU2O8+DELTA LA2-XSRXCUO4 PB Кл.слова (ненормированные): High-T-c superconductivity -- Strong correlated electron systems -- Mechanisms of superconducting pairing -- High-T c superconductivity -- Mechanisms of superconducting pairing -- Strong correlated electron systems -- Ab initio -- Buckling mode -- Correlated electron systems -- Critical temperatures -- Cuprates -- Fitting parameters -- High-T -- Isotope effect -- Low energies -- Magnetic mechanisms -- Order of magnitude -- Phonon mode -- Strongly correlated electron system -- Strongly correlated electrons -- Superconducting pairing -- Superconductivity mechanism -- Type theory -- Buckling -- Copper compounds -- Electrons -- Isotopes -- Magnetic materials -- Phonons -- Superconductivity -- Superconducting magnets Аннотация: We consider magnetic mechanism of superconducting pairing in the effective low energy t - t' - t '' - J* model with all parameters calculated ab initio. Interaction of strongly correlated electrons with different phonon modes is also incorporated. In a BCS type theory, the d(x2-y2) gap is given by a sum of magnetic and phonon contributions. The main contribution to the only fitting parameter G is determined by a competition of the breathing and buckling modes. Fitting the parameter G from the isotope effect, we obtain that magnetic and phonon contributions to the critical temperature T-c work together and are of the same order of magnitude.
WOS, Scopus, Читать в сети ИФ Держатели документа: [Ovchinnikov, S. G. Shneyder, E. I.] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia [Ovchinnikov, S. G.] Siberian Fed Univ, Krasnoyarsk 660041, Russia [Shneyder, E. I.] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia ИФ СО РАН L.V. Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036 Krasnoyarsk, Russian Federation Siberian Federal University, 660041 Krasnoyarsk, Russian Federation Reshetnev Siberian State Aerospace University, 660014 Krasnoyarsk, Russian Federation Доп.точки доступа: Shneyder, E. I.; Шнейдер, Елена Игоревна; Овчинников, Сергей Геннадьевич } Найти похожие
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