Signal generation mechanisms in scanning‐electron acoustic microscopy of ionic crystals
作者:
M. Urchulutegui,
J. Piqueras,
期刊:
Journal of Applied Physics
(AIP Available online 1990)
卷期:
Volume 67,
issue 1
页码: 1-4
ISSN:0021-8979
年代: 1990
DOI:10.1063/1.346087
出版商: AIP
数据来源: AIP
摘要:
MgO crystals have been studied by scanning‐electron acoustic microscopy under different experimental conditions. Contrast mechanisms in imaging are discussed and compared. The experimental results obtained by earthing or nonearthing the specimen‐transducer interface suggest the existence of a signal generation mechanism that is related to the ionic nature of these kind of crystals. Electron‐acoustic microscopy appears then to be a useful tool for the characterization of ionic materials.
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