Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2004

Аннотация: The experimental dispersion of the first removal state in the insulating Bi2Sr2Ca1-xYxCu2O8+? regime of is found to differ significantly from that of other parent materials: oxyclorides and . For Y-contents of due to nonstoichiometric effects in the Bi- O layers, the hole concentration in the CuO2-layers is almost constant and on the contrary the crystal lattice parameters a,b,c change very strongly. This (a,b) parameter increase and c parameter decrease results in an unconventional three peak structure at (0,0);(?/2,?/2);(?,?) for x=0.92. We can describe the experimental data only beyond the framework of the 3-band p- d-model involving the representations of a new triplet counterpart for the Zhang-Rice singlet state.

Журнал: Письма в Журнал экспериментальной и теоретической физики

Выпуск журнала: Т. 80, № 11

Номера страниц: 819-823

ISSN журнала: 0370274X

Место издания: Москва

Издатель: Федеральное государственное унитарное предприятие Академический научно-издательский, производственно-полиграфический и книгораспространительский центр Наука

• Janowitz C. (Humboldt University Berlin, Institute of Physics)
• Seidil U. (Humboldt University Berlin, Institute of Physics)
• Unger R.-S. (Humboldt University Berlin, Institute of Physics)
• Krapf A. (Humboldt University Berlin, Institute of Physics)
• Manzke R. (Humboldt University Berlin, Institute of Physics)
• Gavrichkov V. (Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences)
• Ovchinnikov S. (Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences)

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