Crossover from crossing to tilted vortex phase in Bi2Sr2CaCu2O8+δ single crystals near ab-plane
BUZDIN, Alexandre I.
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Institut universitaire de France [IUF]
See more >
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Institut universitaire de France [IUF]
BUZDIN, Alexandre I.
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Institut universitaire de France [IUF]
< Reduce
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Institut universitaire de France [IUF]
Language
en
Article de revue
This item was published in
Physica C: Superconductivity and its Applications. 2013, vol. 484, p. 77-80
Elsevier
English Abstract
In extremely anisotropic layered superconductors of Bi2Sr2CaCu2O8+δ the stacks of vortex pancakes (PV) and the Josephson vortex (JV) interpenetrate, and due to PV-JV mutual pinning energy, weakly interact and form various ...Read more >
In extremely anisotropic layered superconductors of Bi2Sr2CaCu2O8+δ the stacks of vortex pancakes (PV) and the Josephson vortex (JV) interpenetrate, and due to PV-JV mutual pinning energy, weakly interact and form various tilted and crossing lattice structures including vortex chains, stripes, mixed chain + lattice phases, etc. In order to study these phenomena, it is decisive to have excellent quality of samples and the ideal experimental techniques. The vortex phases in high-quality Bi2Sr2CaCu2O8+δ single crystals were studied by in-plane resistivity measurement and local ac magnetic permeability. The sharp crossover was shown by both techniques, deep in the vortex solid state separating the Abrikosov dominant 'strong pinning' phase from the Josephson dominant 'weak pinning' phase. Those two vortex states were recognized as the mixed chain + lattice vortex phase and chains (tilted) vortex phase, respectively.Read less <
English Keywords
Vortex phase diagram
Crossing lattices
c-Axis resistance
Bi2Sr2CaCu2O8+d
Origin
Hal imported