Silver Growth on AFM Tip Apexes from Silver Nitrate Solutions Triggered by Focused-Ion-Beam Irradiation
- PDF / 620,460 Bytes
- 5 Pages / 432 x 648 pts Page_size
- 73 Downloads / 191 Views
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