Symmetry and anisotropic optical spectrum of charge-transfer excitons in the model of CuO2 plane / Cherepanov VI,Kondrashov EN,Moskvin AS // PHYSICS OF THE SOLID STATE. - 2000. - V. 42, l. 5. - P. 866-872.

ISSN/EISSN:

1063-7834 / нет данных

Type:

Article

Abstract:

A method of group-theoretical classification of excitonic states with a charge transfer from a unit cell to neighboring ones is suggested in a tetragonal two-dimensional model of a CuO2 plane. The orientation (anisotropy) and polarization (pleochroism) dependences of the intensities of excitonic dipole-forbidden optical transitions are determined. The phenomenon of initiating dipole-forbidden transitions in an external electric field is theoretically considered. General dependences of the probabilities of such transitions on the value and direction of the electric field and on the light wave polarization are found. The dependences obtained can be used to identify weak absorption bands in dielectric cuprates containing CuO2 planes. (C) 2000 MAIK ``Nauka/ Interperiodica{''}.

Author keywords:

CUPRATE SUPERCONDUCTORS; ELECTRONIC-STRUCTURE; EXCITATIONS; OXIDES

DOI:

10.1134/1.1131303

Web of Science ID:

ISI:000086730400011

Соавторы в МНС:

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Другие поля

Поле	Значение
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	CUPRATE SUPERCONDUCTORS; ELECTRONIC-STRUCTURE; EXCITATIONS; OXIDES
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Number-of-Cited-References	23
Usage-Count-Since-2013	1
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	308UC