Abstract
Transport measurements using the dc flux transformer configuration together with -axis resistance data in clean and twinned single crystals show that vortices are localized by the twin-boundary potential. The results support the existence of a divergent tilt modulus [D. R. Nelson and V. M. Vinokur, Phys. Rev. B 48, 13 060 (1993)] in a liquid that freezes into a Bose glass.
- Received 18 December 1995
DOI:https://doi.org/10.1103/PhysRevB.53.R8895
©1996 American Physical Society