7. Y. P. Zhang, L. Yan, S. S. Xie, S. J. Pang, and H. -J. Gao
"Self-assembled growth of ordered Ge nanoclusters on the Si(111)-(7 x 7) surface"
Surface Science 497 (1-3), L60-L64 (2002).

6. L. Yan, H. Q. Yang, H. -J. Gao, S. S. Xie, and S. J. Pang
"Initial adsorption of Ge on Si(111)-(7 x 7) surface at room temperature"
Surface Science 498 (1-2), 83-88 (2002).

5. L. Yan, Y. P. Zhang, Y. P. Peng, H. -J. Gao, S. S. Xie, and S. J. Pang
"Direct observation of Si-related and Ge-related ring clusters on Si(111)-(7 x 7) surface"
Vacuum 65 (2), 207-211 (2002).

4. H. W. Liu, H. Q. Yang, H. M. Guo, Y. L. Wang, X. Lin, S. J. Pang, and H. -J. Gao
"Patterns formed on the dimer vacancy array of Si(100) by self-assembly"
Nanotechnology 13 (6), 729-732 (2002).

3. H. X. Zhang, D. X. Shi, Y. L. Song, H. W. Liu, S. M. Hou, Z. Q. Xue, and H. -J. Gao
"Reversible, electrical and optical switching on silver 3-phenyl-1-ureidonitrile complex thin films"
Chinese Physics 11 (11), 1196-1199 (2002).

2. H. M. Wu, Y. L. Song, T. Zhao, L. Jiang, H. W. Liu, and H. -J. Gao
"Ultrahigh-density data storage on a novel organic thin film achieved using a scanning tunnelling microscope"
Nanotechnology 13 (6), 733-735 (2002).

1. W. Q. Wang, Y. Gong, Z. Liang, F. L. Sun, D. X. Shi, H. -J. Gao, X. Lin, P. Jiang, and Z. M. Wang
"Direct observation of surface structure of D-alanine and D-/L-valine crystals by atomic force microscopy and comparison with X-ray diffraction analysis"
Surface Science 512 (3), L379-L384 (2002).