Atomic relaxation at ordered electrode surfaces probed by scanning tunneling microscopy: Au(111) in aqueous solution compared with ultrahigh‐vacuum environments

1991 ◽  
Vol 95 (9) ◽  
pp. 6993-6996 ◽  
Author(s):  
Xiaoping Gao ◽  
Antoinette Hamelin ◽  
Michael J. Weaver
Keyword(s):  
Aqueous Solution ◽  
Scanning Tunneling Microscopy ◽  
Ultrahigh Vacuum ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Electrode Surfaces ◽  
Atomic Relaxation

scholarly journals Layer-by-Layer Pyramid Formation from Low-Energy Ar+ Bombardment and Annealing of Ge (110)

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2521
Author(s):  
Marshall van Zijll ◽  
Samantha S. Spangler ◽  
Andrew R. Kim ◽  
Hazel R. Betz ◽  
Shirley Chiang
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Ultrahigh Vacuum ◽  
Surface Damage ◽  
Low Energy ◽  
Scanning Tunneling ◽  
Layer By Layer ◽  
Sample Holder ◽  
Tunneling Microscopy ◽  
Ion Energies ◽  
20 Nm

Isolated pyramids, 30–80 nm wide and 3–20 nm tall, form during sputter-annealing cycles on the Ge (110) surface. Pyramids have four walls with {19 13 1} faceting and a steep mound at the apex. We used scanning tunneling microscopy (STM) under ultrahigh vacuum conditions to periodically image the surface at ion energies between 100 eV and 500 eV and incremental total flux. Pyramids are seen using Ar+ between 200 eV and 400 eV, and require Ag to be present on the sample or sample holder. We suspect that the pyramids are initiated by Ag co-sputtered onto the surface. Growth of pyramids is due to the gathering of step edges with (16 × 2) reconstruction around the pyramid base during layer-by-layer removal of the substrate, and conversion to {19 13 1} faceting. The absence of pyramids using Ar+ energies above 400 eV is likely due to surface damage that is insufficiently annealed.

Extending Atomic-resolution Electrochemicl Scanning Tunneling Microscopy Studies to Polycrystalline Electrode Surfaces

1997 ◽  
Vol 13 (12) ◽  
pp. 1061-1064
Author(s):  
Shi Cai-Hui ◽  
◽  
Cai Xiong-Wei ◽  
Chen Yan-Xia ◽  
Tian Zhong-Qun ◽  
...  
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Atomic Resolution ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Electrode Surfaces

Observation of Nanosized Cap Structures on 6H–SiC(000\bar1) Substrates by Ultrahigh-Vacuum Scanning Tunneling Microscopy

2006 ◽  
Vol 45 (1A) ◽  
pp. 372-374 ◽  
Author(s):  
Hyungjin Bang ◽  
Yuka Ito ◽  
Yasuyuki Kawamura ◽  
Etsuko Hosoda ◽  
Chisa Yoshida ◽  
...  
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Ultrahigh Vacuum ◽  
Scanning Tunneling ◽  
Tunneling Microscopy
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