2002
DOI: 10.1139/p01-132
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Dependence on crystallographic orientation of trapping properties in a polished MgO single crystal

Abstract: It is well known that the presence of space charges in an insulator is correlated with electric breakdown. Many studies have been carried out on the experimental characterization of space charges and on phenomenological models of trapping and detrapping. In this paper, we outline the dependence on crystallographic orientations of the charge-trapping phenomenon in polished MgO. The charging phenomenon was characterized during and after electron injection by using a scanning electron microscope (SEM). It was sho… Show more

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“…These properties are affected by several properties of the material such as the elaboration process, the structural surface defects, the homogeneity and the crystallographic structure. In particular, crystalline anisotropy affects the trapping efficiency of an irradiated surface [14,19], and may cause a modification of the predicted shape of the irradiated area as previously observed in the mirror method [20] (ellipsoid instead of disk).…”
Section: Discussionmentioning
confidence: 96%
“…These properties are affected by several properties of the material such as the elaboration process, the structural surface defects, the homogeneity and the crystallographic structure. In particular, crystalline anisotropy affects the trapping efficiency of an irradiated surface [14,19], and may cause a modification of the predicted shape of the irradiated area as previously observed in the mirror method [20] (ellipsoid instead of disk).…”
Section: Discussionmentioning
confidence: 96%