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2001
It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.
Low-temperature hydrogen-assisted clusterization of aluminum impurity in silicon has been studied. It was found that hydrogen can decrease the diffusion barrier of the Al atom and initiate the migration of Al atoms at 180–200 K. As a result, an interstitial aluminum pair formation takes place in H-implanted silicon. The implantation with a dose ⩾1×1016/cm2 causes formation of the clusters containing more than two aluminum atoms.