Anharmonicity of lattice vibrations induced by charged nickel impurities in II-VI semiconductors / Sokolov VI,Gruzdev NB,Shirokov EA,Kislov AN // PHYSICS OF THE SOLID STATE. - 2002. - V. 44, l. 1. - P. 34-41.

ISSN/EISSN:

1063-7834 / нет данных

Type:

Article

Abstract:

The lattice vibrations induced by nickel impurities with a negative charge relative to the lattice in ZnSe : Ni, ZnO : Ni, ZnS : Ni, and CdS : Ni semiconductors are investigated using very sensitive field-induced vibronic spectroscopy. This technique is based on the interaction of lattice vibrations with impurity excitons and the effect of an ac electric field on these excitons. The phonon replicas of the zero-phonon line (ZPL) of impurity excitons (including intense peaks of combination replicas up to the eighth order) in the experimental spectra of the system under investigation are observed for the first time. These spectra make it possible to analyze the interaction between different vibrations. The experimental results are interpreted in terms of model calculations of the vibrations in a lattice with a charged impurity center and vibrations in a monoatomic chain with a strong anharmonicity. It is demonstrated that charged impurity centers initiate new lattice vibrations, namely, extrinsic anharmonic modes with a considerable third- or fourth-order anharmonicity. (C) 2002 MAIK ``Nauka/Interperiodica{''}.

Author keywords:

ACCEPTOR EXCITONS; ZNSE-NI; ZNO-NI; DYNAMICS; CRYSTALS; MODES; CDS

DOI:

10.1134/1.1434479

Web of Science ID:

ISI:000173049200007

Соавторы в МНС:

Другие поля

Поле	Значение
Publisher	AMER INST PHYSICS
Address	CIRCULATION \& FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
Language	English
Keywords-Plus	ACCEPTOR EXCITONS; ZNSE-NI; ZNO-NI; DYNAMICS; CRYSTALS; MODES; CDS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Sokolov, Viktor/J-9376-2013 Gruzdev, Nikita/J-9311-2013
ORCID-Numbers	Sokolov, Viktor/0000-0002-6252-8914 Gruzdev, Nikita/0000-0001-7563-6685
Number-of-Cited-References	27
Usage-Count-Since-2013	5
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	507UG