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Ovchinnikov, S. G. Role of zinc and nickel impurities in high-temperature superconductors / S. G. Ovchinnikov> // Phys. Solid State. - 1999. - Vol. 41, Is. 4. - P. 534-538, DOI 10.1134/1.1130819. - Cited References: 32
. - ISSN 1063-7834РУБ Physics, Condensed Matter Рубрики: PR2-XCEXCUO4+DELTA SINGLE-CRYSTALS SR-CU-O COPPER OXIDES MAGNETIC-PROPERTIES NI MODEL ZN SUBSTITUTION SCATTERING SPECTRUM Аннотация: The local changes produced in the electronic structure and their effect on the physical properties of the superconducting and normal phases when zinc and nickel are substituted for copper are examined on the basis of a multiband p-d model. It is shown that strong electronic correlations suppress the S = 1 configuration of Ni2+ and cause the superposition of the S = 1/2 and S = 0 states of nickel. The change in the density of states in p- and n-type systems is studied, and the peculiarity of Zn impurity for p- type systems and Ni impurity for n-type systems is shown. The universal dependence of the T-c on the residual resistance in lightly doped superconductors and deviations from it in optimally doped systems are discussed. (C) 1999 American Institute of Physics. [S1063-7834(99)00704-2].
WOS, Scopus, Читать в сети ИФ Публикация на русском языке Овчинников, Сергей Геннадьевич. Роль примесей цинка и никеля в высокотемпературных сверхпроводниках [Текст] / С. Г. Овчинников // Физ. тверд. тела. - 1999. - Т. 41 Вып. 4. - С. 596-600
Держатели документа: Russian Acad Sci, Siberian Branch, LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia ИФ СО РАН Доп.точки доступа: Овчинников, Сергей Геннадьевич } Найти похожие
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