DocumentCode
445772
Title
Ion irradiation and reduction effect on the conductivity of heavily MgO + Fe2O3-doped LiNbO3 single crystals
Author
Pichugin, V.F. ; Bulycheva, A.A. ; Yakovlev, V.Yu. ; Kim, Won
Author_Institution
Polytechnic Univ. Tomsk, Russia
Volume
2
fYear
2004
fDate
26 June-3 July 2004
Firstpage
258
Abstract
The effect of the insulator-conductor transition of surface layers of oxides by ion bombardment was investigated by the example of doped LiNbO3 single crystals. The important role of reduction in modification of conducting properties of the ion-irradiated crystals was established. The action of reduction on the electric characteristics of crystals LiNbO3 is similar to that of ion bombardment A new band of optical absorption with a maximum at 3.7 eV caused by presence of Mg impurity in LiNbO3+ MgO was founded. The comparative analysis of electric properties of reduced and irradiated by Ar+ ions crystals shows, that conductivity of the lithium niobate ion-modified layers is carried out by polarons hopping.
Keywords
doping; hopping conduction; impurities; ion beam effects; iron compounds; lithium compounds; magnesium compounds; metal-insulator transition; polarons; reduction (chemical); ultraviolet spectra; LiNbO3:MgO,Fe2O3; Mg impurity; conductivity; electric characteristics; heavily MgO + Fe2O3-doped LiNbO3 single crystals; insulator-conductor transition; ion bombardment; ion irradiation; optical absorption band; polaron hopping; reduction effect; surface layers; Absorption; Argon; Conductivity; Crystals; Electric variables; Impurities; Insulation; Iron; Lithium niobate; Particle beam optics;
fLanguage
English
Publisher
ieee
Conference_Titel
Science and Technology, 2004. KORUS 2004. Proceedings. The 8th Russian-Korean International Symposium on
Print_ISBN
0-7803-8383-4
Type
conf
DOI
10.1109/KORUS.2004.1555613
Filename
1555613
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