Self-trapping of the d-d charge transfer exciton in bulk NiO evidenced by X-ray excited luminescence / Sokolov V. I.,Pustovarov V. A.,Churmanov V. N.,Ivanov V. Yu,Gruzdev N. B.,Sokolov P. S.,Baranov A. N.,Moskvin A. S. // JETP LETTERS. - 2012. - V. 95, l. 10. - P. 528-533.

ISSN/EISSN:

0021-3640 / нет данных

Type:

Article

Abstract:

Soft X-ray (XUV) excitation did make it possible to avoid the predominant role of the surface effects in luminescence of NiO and revealed a bulk luminescence with a puzzling well isolated doublet of very narrow lines with close energies near 3.3 eV which is assigned to recombination transitions in self-trapped d-d charge transfer (CT) excitons formed by coupled Jahn-Teller Ni+ and Ni3+ centers. The conclusion is supported both by a comparative analysis of the CT luminescence spectra for NiO and solid solutions Ni (x) Zn1 - x O, and by a comprehensive cluster model assignment of different p-d and d-d CT transitions, their relaxation channels. To the best of our knowledge, it is the first observation of the luminescence due to self-trapped d-d CT excitons.

Author keywords:

ELECTRONIC-STRUCTURE; OPTICAL PROPERTIES; ELECTROREFLECTANCE; EXCITATIONS; IMPURITIES; OXIDES

DOI:

10.1134/S0021364012100116

Web of Science ID:

ISI:000306950800007

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUL
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	ELECTRONIC-STRUCTURE; OPTICAL PROPERTIES; ELECTROREFLECTANCE; EXCITATIONS; IMPURITIES; OXIDES
Research-Areas	Physics
Web-of-Science-Categories	Physics, Multidisciplinary
Author-Email	alexandr.moskvin@usu.ru
ResearcherID-Numbers	Sokolov, Petr/E-8376-2011 Baranov, Andrey/E-1424-2012 Gruzdev, Nikita/J-9311-2013 Sokolov, Viktor/J-9376-2013
ORCID-Numbers	Sokolov, Petr/0000-0003-3516-3953 Gruzdev, Nikita/0000-0001-7563-6685 Sokolov, Viktor/0000-0002-6252-8914
Funding-Acknowledgement	Ural Branch, Russian Academy of Sciences {[}12-U-2-1030]; Russian Foundation for Basic Research {[}10-02-96032, 12-02-01039]
Funding-Text	We are grateful to R.V. Pisarev for helpful discussions. This work was partially supported by the Ural Branch, Russian Academy of Sciences (project no. 12-U-2-1030) and the Russian Foundation for Basic Research (project nos. 10-02-96032 and 12-02-01039 (A.S.M.)).
Number-of-Cited-References	26
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	23
Journal-ISO	Jetp Lett.
Doc-Delivery-Number	981EX