DocumentCode
1029644
Title
An analysis of current instabilities in semi-insulating piezoelectric crystals
Author
Froom, J.
Author_Institution
Standard Telecommunication Laboratories, Essex, England
Volume
14
Issue
10
fYear
1967
fDate
10/1/1967 12:00:00 AM
Firstpage
656
Lastpage
663
Abstract
The conditions for current oscillation in a semi-insulating piezoelectric crystal with nonuniform carrier concentration are obtained using a simplified electron-phonon interaction law and the Weinreich momentum relationship. Start-oscillation conditions are then obtained as a function of the applied field, the carrier concentration ratio in the two parts of the crystal and the ratio of their lengths. The calculations are compared with experimental results and it is concluded that much of the observed behavior can be predicted qualitatively by this simple analysis.
Keywords
Conducting materials; Crystalline materials; Crystals; Electron devices; Gunn devices; Insulation; Optical pulse generation; Phonons; Photoconducting materials; Piezoelectric materials;
fLanguage
English
Journal_Title
Electron Devices, IEEE Transactions on
Publisher
ieee
ISSN
0018-9383
Type
jour
DOI
10.1109/T-ED.1967.16084
Filename
1474807
Link To Document