Podcast
Questions and Answers
What is the primary reason for the deviation of atomic positions on a clean surface of a crystal from those found in the bulk?
What is the primary reason for the deviation of atomic positions on a clean surface of a crystal from those found in the bulk?
- Atoms on the surface do not interact with atoms in the bulk
- The surface plane is not a perfect xy-plane
- Atoms on the surface only interact with atoms below the surface plane (correct)
- Atoms on the surface interact with atoms above and below the surface plane
What is the consequence of the unique interaction of surface atoms with atoms below the surface plane?
What is the consequence of the unique interaction of surface atoms with atoms below the surface plane?
- Deviations from the surface atomic positions in the bulk
- Two types of changes in the bulk atomic positions (correct)
- A single type of change in the surface atomic positions
- No changes in the atomic positions on the surface
In which plane do the surface atoms of a crystal reside?
In which plane do the surface atoms of a crystal reside?
- xy-plane (correct)
- xz-plane
- Any plane is possible
- yz-plane
What is the characteristic of the interaction between surface atoms and atoms below the surface plane?
What is the characteristic of the interaction between surface atoms and atoms below the surface plane?
What is the implication of the difference in interaction between surface atoms and bulk atoms?
What is the implication of the difference in interaction between surface atoms and bulk atoms?
What is the primary factor responsible for the distinct behavior of surface atoms in a crystal?
What is the primary factor responsible for the distinct behavior of surface atoms in a crystal?
Which of the following is a consequence of the interaction between surface atoms and atoms below the surface plane?
Which of the following is a consequence of the interaction between surface atoms and atoms below the surface plane?
What is the key difference between the interactions of surface atoms and bulk atoms in a crystal?
What is the key difference between the interactions of surface atoms and bulk atoms in a crystal?
What is the characteristic of the surface atoms in a crystal that leads to changes in their atomic positions?
What is the characteristic of the surface atoms in a crystal that leads to changes in their atomic positions?
What is the implication of the unique interaction between surface atoms and atoms below the surface plane in a crystal?
What is the implication of the unique interaction between surface atoms and atoms below the surface plane in a crystal?
