Conference paper
Closing the pseudogap in Bi2Sr2CaCu2O8+y at high-magnetic fields
T. Shibauchi, L. Krusin-Elbaum, et al.
Physica C: Superconductivity and its Applications
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.
T. Shibauchi, L. Krusin-Elbaum, et al.
Physica C: Superconductivity and its Applications
L. Krusin-Elbaum, D. Lopez, et al.
Nature
T. Shibauchi, L. Krusin-Elbaum, et al.
RHMF 2006
L. Krusin-Elbaum, L. Civale, et al.
Physical Review Letters