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In this paper we demonstrate a process optimization of atomic layer deposited Al2O3 on 4H-SiC resulting in an improved interface and electrical properties. For this purpose the samples have been treated with two pre deposition surface cleaning processes, namely CP1 and CP2. The former is a typical surface cleaning procedure used in SiC processing while the latter have an additional weak RCA1 cleaning...
The highlands of the semi-arid province of Balochistan, Pakistan, are in the midst of a transition from traditional karez based irrigation to pumping of groundwater by tubewells. The transition besides affecting environmental quality is also leading to erosion of karez centered social capital in the province. The rural populace is quite concerned about the erosion of social capital and the loss of...
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