Secondary emission of bound excitons in lithium hydride single crystals / Pustovarov VA,Betenekova TA,Polienko AN,Cholakh SO // PHYSICA STATUS SOLIDI B-BASIC RESEARCH. - 1998. - V. 208, l. 2. - P. 427-433.

ISSN/EISSN:

0370-1972 / нет данных

Type:

Article

Abstract:

The relaxation of free excitons into the states of bound excitons with large and small radii in lithium hydride single crystals with isovalent and heterovalent impurities has been studied on the basis of low-temperature exciton-phonon spectra of luminescence and resonant combinational scattering. Bound excitons with large radii have resonant levels at E < E-ex (E-ex is the energy of the basic excitonic state n = 1s) and are characterized by a lifetime not larger than 10(-10) s. The excitons with small radii have lifetimes of 10(-5) to 10(-6) s at 78 K. They may be obtained by either recombination or direct formation of near-impurity excitations or relaxation of bound excitons with large radii into small radii states. Such relaxation takes place due to the generation of LO(T)phonons.

Author keywords:

нет данных

DOI:

10.1002/(SICI)1521-3951(199808

Web of Science ID:

ISI:000075390000012

Соавторы в МНС:

Другие поля

Поле	Значение
Month	AUG
Publisher	WILEY-V C H VERLAG GMBH
Address	MUHLENSTRASSE 33-34, D-13187 BERLIN, GERMANY
Language	English
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Cholakh, Seif/M-8221-2016
ORCID-Numbers	Cholakh, Seif/0000-0002-9313-6614
Number-of-Cited-References	15
Journal-ISO	Phys. Status Solidi B-Basic Res.
Doc-Delivery-Number	110PR