Sentence examples for a bean chain from inspiring English sources
In Figure 3b, each 3-NW consists of double bead chains separated by a bean chain.
The diameter and the periodicity of protrusions in a bean chain are 1.2 ± 0.1 and 1.4 ± 0.1 nm, respectively.
At the first growth stage, each 3-NW comprises double bead chains on two sides, separated by a bean chain.
In the filled-state image, each 3-NW appears to comprise two chains of tetramers with the opposite orientation at both sides, similar to the orientation of the Si tetramer pair (Figure 1d), and a bean chain at the middle of the NW.
These results strongly suggest that the Si pentagon/tetramer pair on the upper terraces of the 16 × 2 reconstruction (Figure 1c,d) is split into two individual Si pentagons/tetramers upon Ce adsorption due to the preferential reactivity of Ce atoms with the Si pentagon pair on the upper terraces (Figure 2a), thereby leading to the formation of a bean chain at the middle of the 3-NWs.
The empty-state image clearly shows that the rounded protrusions of the double bead chains in Figure 3b convert to pentagons and the bean chain becomes a trench.
Moreover, the contrast of these double tetramer chains is lower than that of the bean chain.
Notice that the dark trench in Figure 3c inverts to the bright bean chains in Figure 3d when the bias polarity is reversed.
