The emergence of conductivity at the {001} interface of LaAlO3 and SrTiO3 is one of the more celebrated examples of interface engineering. Using a microscopy approach based on a sensitive magnetometry probe, it is now shown that narrow paths of enhanced conductivity occur along the crystallographic axes of the oxide structures.
- Beena Kalisky
- Eric M. Spanton
- Kathryn A. Moler