During the visit, we were guided by Dr. Agus Subagyo, a postdoctoral researcher of the nano electronic laboratory. Although participants are coming form different field, Dr Agus explained to us very clearly about lates nano electronic techonolgy research doing in his laboratory. He mentioned about "SPIN " (Micro magnetism of individual atoms) Technology. He also showed us how to use STM (Scanning Tunneling Microscope), EFM (Exchange Force Microscope), Spin-polarized scanning electron microscope, and MBE (Molecular Beam Epitaxy).
One of our member tried to write a short word using STM on a Si (111) 7 x 7 reconstructed surface. Writing on a plat terrace by applying a continuous negative voltage pulse of 4.2V for 0.1 ms, at final the image result has scan size of 45 x 75 nm2. |
