Twin boundaries can be moved by step edges during film growth.
Journal Article
·
· Proposed for publication in Physical Review Letters.
OSTI ID:970715
- University of Minnesota, Minneapolis, MN
We track individual twin boundaries in Ag films on Ru(0001) using low-energy electron microscopy. The twin boundaries, which separate film regions whose close-packed planes are stacked differently, move readily during film growth but relatively little during annealing. The growth-driven motion of twin boundaries occurs as film steps advance across the surface - as a new atomic Ag layer reaches an fcc twin boundary, the advancing step edge carries along the boundary. This coupling of the microstructural defect (twin boundary) and the surface step during growth can produce film regions over 10 {micro}m wide that are twin free.
- Research Organization:
- Sandia National Laboratories
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 970715
- Report Number(s):
- SAND2005-2713J
- Journal Information:
- Proposed for publication in Physical Review Letters., Journal Name: Proposed for publication in Physical Review Letters.
- Country of Publication:
- United States
- Language:
- English
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