1990 Photomicrography Competition
![Small World](/images/SW50-logo.png)
![](https://www.nikonsmallworld.com/images/photos/1990/_photo800/1990_09.jpg)
9th Place
Stair-step twinning on superconductor substrate wafer cut from single LaA103 crystal
Michael W. Davidson
- Affiliation
- Florida State University
Center for Materials Research and Technology
Tallahassee, Florida, USA
- Technique
- Polarized Light
- Magnifaction
- 10