Multiplication of electron-hole pairs in MgO crystals and ceramics

被引：15

作者：

Kirm, M

Feldbach, E

Karner, T

Lushchik, A

Lushchik, C

Maaroos, A

Nagirnyi, V

Martinson, I

机构：

[1] Univ Hamburg, Inst Expt Phys 2, D-22761 Hamburg, Germany

[2] Inst Phys, EE-2400 Tartu, Estonia

[3] Tartu State Univ, EE-2400 Tartu, Estonia

[4] Lund Univ, S-22362 Lund, Sweden

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1998年 / 141卷 / 1-4期

关键词：

excitation multiplication; luminescence; synchrotron radiation; MgO;

D O I：

10.1016/S0168-583X(98)00020-2

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The excitation spectra for various impurity emissions have been measured 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 recombination at the impurity centres of various structure differ significantly for two stages of multiplication of electron-hole (e-h) pairs with threshold photon energies at 20 and 25 eV. The multiplication processes have been analysed taking into account the peculiarities of the electronic structure of MgO. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：431 / 435

页数：5

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