D. Niebieskikwiat, A. Silhanek, et al.
Physical Review B - CMMP
The regime of rapid thermal activation is addressed in prototype Bi2Sr2CaCu2Ox/Ag tapes containing splayed columnar defects. Although the thermally-activated decay of current diminishes greatly, significant rates of temperature-independent current decay remain due to quantum tunneling of vortices between strong pinning centers. The quantum process dominates the vortex dynamics up to 10 K or more and considerably limits long term current transport in the sample materials.
D. Niebieskikwiat, A. Silhanek, et al.
Physical Review B - CMMP
T. Kato, T. Shibauchi, et al.
Physica C: Superconductivity and its Applications
L. Krusin-Elbaum, T. Shibauchi, et al.
International Journal of Modern Physics B
L. Krusin-Elbaum, D. López, et al.
Physica C: Superconductivity and its Applications