The multiband analysis of the electron dispersion at the top of the valence band in undoped cuprates


Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Конференция: NATO Advanced Research Workshop on Itinerant Electron Magnetism - Fluctuation Effects & Critical Phenomena; MOSCOW, RUSSIA; MOSCOW, RUSSIA

Год издания: 1998

Аннотация: The dispersion of a hole in the antiferromagnetic background is calculated in the framework of the 6-band p-d model and compared with results of the t-J model and ARPES measurements on Sr2CuO2Cl2 In (0,0)-(pi,pi) and (0,pi)-(pi,0) directions our calculations show a better agreement vs t-J model (in (0,0)-(pi,0) directions), where tПоказать полностьюhe largest discrepancy of t-J and ARPES results takes place, we get a much smaller dispersion. The new ARPES data on Sr2CuO2Cl2 are in good agreement with our calculation in the (0,0)-(pi,0) direction. The implication for the pairing mechanism and the nature of the local boson (spin exciton) resulted from the multiband strongly correlated electron structure analysis are discussed.

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Выпуск журнала: Vol. 55

Номера страниц: 433-436

Место издания: DORDRECHT

Издатель: SPRINGER


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