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Scanning probe phase-change memory has recently been under intensive research due to its promising potential for future archival storage device. However, majority of efforts are devoted to optimization of phase-change stack, while ignoring the influence of the tip-sample contact on the write performance of the device. As phase transition mainly occurs in a region bounded by tip-sample interface, the...
MgO coating ZnO microrods were synthesized by hydrothermal growth method in a two-stage process. The excitation-dependent photoluminescence of uncoated and MgO-coated ZnO microrods was investigated. We found that the MgO coating passivates defect-states on the surface to reduce largely the green emission, thus the ultraviolet emission efficiency is improved significantly. In addition, the monotonous...
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