Low Temperature Physics: 29, 858 (2003); https://doi.org/10.1063/1.1619358 (4 pages)
Физика Низких Температур: Том 29, Выпуск 9-10 (Сентябрь 2003), c. 1125-1129    ( к оглавлению , назад )

Exciton self-trapping into diatomic and triatomic molecular complexes in xenon cryocrystals

A.N. Ogurtsov1,2, E.V. Savchenko1

1 B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61103, Ukraine
E-mail: ogurtsov@ilt.kharkov.ua

2 Department of Physics of Ukrainian Academy of Railway Transport 7 Feuerbach Sq., Kharkov 61050, Ukraine

E. Sombrowski

Deutsches Elektronen-Synchrotron DESY, 85 Notkestrasse, Hamburg 22607, Germany

S. Vielhauer, and G. Zimmerer

Institut für Experimentalphysik der Universität Hamburg 149 Luruper Chausee, Hamburg 22761, Germany

Аннотация

The recent study of molecular trapped centers in Xe cryocrystals was extended on triatomic self-trapped excitons. Time- and spectrally-resolved molecular luminescence was measured in the temperature range 5–60 K. The processes of intrinsic exciton self-rapping into diatomic and triatomic molecular complexes and extrinsic exciton trapping at lattice imperfections were separated by selective photoexcitation of Xe cryocrystals by synchrotron radiation. The temperature dependencies of triplet lifetimes of molecular exciton subbands were measured for the first time.

PACS:
71.35.-y - Excitons and related phenomena
78.55.Hx - Other solid inorganic materials