The influence of the matrix element on angle-resolved photoemission spectra of insulating cuprates / Moskvin AS,Kondrashov EN,Cherepanov VI // PHYSICS OF THE SOLID STATE. - 2001. - V. 43, l. 5. - P. 823-829.

ISSN/EISSN:

1063-7834 / нет данных

Type:

Article

Abstract:

Microscopic model calculations of the matrix element of a dipole moment are carried out in terms of the cluster model. This matrix element determines the transition probability of electron photoemission from a one-electron orbital with symmetry gamma mu to a free state. The effect of the matrix element on the angular and polarization dependences in the angle-resolved photoemission spectra of insulating cuprates, such as Sr2CuO2Cl2 and Ca2CuO2Cl2, is analyzed under the assumption of a well-isolated ground state of the two-hole CuO45- cluster, namely, the Zhang-Rice singlet. The angular k dependence of the matrix element gives rise to effects, such as the residual Fermi surface, which are typical of metallic systems. An analysis of the experimental data reveals the presence of another electronic state (with different symmetry) in the vicinity of the Zhang-Rice singlet. (C) 2001 MAIK ``Nauka/Interperiodica{''}.

Author keywords:

SR2CUO2CL2; MODEL; SUPERCONDUCTORS; DISPERSION

DOI:

10.1134/1.1371359

Web of Science ID:

ISI:000168378800005

Соавторы в МНС:

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Другие поля

Поле	Значение
Publisher	AMER INST PHYSICS
Address	2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
Language	English
Keywords-Plus	SR2CUO2CL2; MODEL; SUPERCONDUCTORS; DISPERSION
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Number-of-Cited-References	29
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	426YY