MULTIPLICATION OF ELECTRON-HOLE PAIRS IN MGO CRYSTALS AND CERAMICS

Authors
KIRM M FELDBACH E KARNER T LUSHCHIK A LUSHCHIK C MAAROOS A NAGIRNYI V MARTINSON I
Citation
M. Kirm et al., MULTIPLICATION OF ELECTRON-HOLE PAIRS IN MGO CRYSTALS AND CERAMICS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 141(1-4), 1998, pp. 431-435
Citations number
17
Categorie Soggetti
Instument & Instrumentation","Nuclear Sciences & Tecnology","Physics, Atomic, Molecular & Chemical","Physics, Nuclear
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
141
Issue
1-4
Year of publication
1998
Pages
431 - 435
Database
ISI
SICI code
0168-583X(1998)141:1-4<431:MOEPIM>2.0.ZU;2-9
Abstract
The excitation spectra for various impurity emissions have been measur ed in MgO:Al, MgO:OH, MgO:Cr crystals and MgO:F, MgO:LiF ceramics at 8 K using synchrotron radiation of 5-32 eV. Processes of radiative reco mbination at the impurity centres of various structure differ signific antly for two stages of multiplication of electron-hole (e-h) pairs wi th threshold photon energies at 20 and 25 eV. The multiplication proce sses have been analysed taking into account the peculiarities of the e lectronic structure of MgO. (C) 1998 Elsevier Science B.V. All rights reserved.