Metastable optical absorption of relaxed electronic excitations in BeO-Zn crystals / Gorbunov SV,Bautin KV,Kruzhalov AV,Yakovlev VY // PHYSICS OF THE SOLID STATE. - 1999. - V. 41, l. 4. - P. 539-543.

ISSN/EISSN:

1063-7834 / нет данных

Type:

Article

Abstract:

Spectra of metastable optical absorption and its relaxation kinetics have been studied in zinc-doped BeO crystals by time-resolved pulsed absorption spectroscopy. A comparison of the observed induced optical absorption of self-trapped excitons and small-radius excitons bound to the zinc impurity suggests that their hole components have similar structures and reveals distinctive features of ``forbidden'' optical transitions in the electronic components. Metastable optical absorption in Zn+ centers has been discovered. It is shown that the small-radius excitons bound to the zinc impurity form in the hole stages of thermally stimulated tunneling recombination processes involving Zn+ electronic centers. It has been found that the high recombination probability of the electronic and hole centers created in BeO-Zn crystals by an electron beam may be due to the high degree of their spatial correlation. (C) 1999 American Institute of Physics. {[}S1063-7834(99)00804-7].

Author keywords:

BERYLLIUM-OXIDE CRYSTALS; EXCITONS

DOI:

10.1134/1.1130820

Web of Science ID:

ISI:000080075600008

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	APR
Publisher	AMER INST PHYSICS
Address	CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 USA
Language	English
Keywords-Plus	BERYLLIUM-OXIDE CRYSTALS; EXCITONS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Number-of-Cited-References	20
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	192JQ