Abstract
In the present work, we report the growth of fully untwinned high-quality -axis-oriented films on (100) substrates by using as a buffer layer. We also fabricated nanowires at different angles with respect to the [0,1,0] direction of the substrate and studied the in-plane anisotropy of the critical current density, which we explained by considering the anisotropy in the coherence length and London penetration depth . Finally, half-integer Shapiro-like steps measured in slightly underdoped -axis oriented () nanowires point towards a different transport regime, which could shed light on intriguing issues of high-critical-temperature superconductors.
- Received 8 February 2017
DOI:https://doi.org/10.1103/PhysRevB.95.184505
©2017 American Physical Society