Abstract
We report the first atomic-resolution scanning tunneling microscopy (STM) image of epitaxial bcc-Fe(001) films grown on MgO(001) substrates. A 50-Å-thick Fe film grown at a growth temperature of 550 K formed square pyramidal islands with atomically flat terraces. The terraces were found to range between 5 nm and 20 nm in width separated by monoatomic high steps. The film exhibited a (1 × 1) unreconstructed structure at a film thickness below 19 Å; however, a reconstructed surface was found on thicker films. The atomic-resolution STM image and low energy electron diffraction (LEED) observation indicated that the reconstructed structure is a c(2 × 2) structure.
| Original language | English |
|---|---|
| Pages (from-to) | 3777-3779 |
| Number of pages | 3 |
| Journal | Japanese Journal of Applied Physics |
| Volume | 39 |
| Issue number | 6 B |
| DOIs | |
| Publication status | Published - 2000 |
Keywords
- bcc-Fe(001)
- C(2 × 2)
- Epitaxial growth
- MgO(001)
- Scanning tunneling microscopy
- Surface reconstruction