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Scanning tunneling microscopy study of water molecules on Pd(110) at cryogenic temperature
| Content Provider | Semantic Scholar |
|---|---|
| Author | Komeda, Tadahiro Fukidome, Hirokazu Kim, Yousoo Kawai, Maki Sainoo, Yasuyuki Shigekawa, Hidemi |
| Copyright Year | 2002 |
| Abstract | We show scanning tunneling microscopy (STM) images of water molecules on Pd(110) at a cryogenic temperature of 4.7 K which enables the observation of isolated water molecules. We observe water-induced features in the STM images in a low-coverage region (~ 0.02 ML), which can be classified in terms of height; namely, (A) 0.15 A, (B) 0.3 A and (C) 0.55 A, observed at Vs=-100 mV. In a high-coverage region, feature C dominates and forms a local c(2×2) structure. Since the ordered structure is identical with the previously reported superstructure of bilayer water on Pd(110), feature C should correspond to a tetramer of water molecules, a unit of bilayer water. Feature A is located on the Pd(110) row. Since feature A is the smallest one, we consider that this corresponds to the monomer of the water molecule whose existence has been observed previously at temperatures below 10 K by electron energy loss spectroscopy (EELS) measurement. |
| Starting Page | 4932 |
| Ending Page | 4935 |
| Page Count | 4 |
| File Format | PDF HTM / HTML |
| DOI | 10.1143/JJAP.41.4932 |
| Volume Number | 41 |
| Alternate Webpage(s) | http://dora.bk.tsukuba.ac.jp/en/pdf/2002/2002%20Japanese%20Journal%20Applied%20Physics%207B,4932-4935.pdf |
| Alternate Webpage(s) | https://doi.org/10.1143/JJAP.41.4932 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
