Multidirectional in-plane linear correlated disorder pinning of vortices in YBa{sub 2}Cu{sub 3}O{sub 7}.
Journal Article
·
· Supercond. Sci. Technol.
We have measured the anisotropic magnetoresistance when the magnetic field and the Lorentz force rotate parallel to the CuO{sub 2} planes in YBa{sub 2}Cu{sub 3}O{sub 7} crystals having partial dislocations aligned along <1 0 0> directions, created by high oxygen pressure annealing treatments, and twin boundaries aligned parallel to <1 1 0> axes. These measurements demonstrate that aligned defects behave as linear correlated disorder vortex pinning centers by anisotropically shifting upwards the irreversibility line of YBa{sub 2}Cu{sub 3}O{sub 7} when the vortices are confined in the CuO{sub 2} planes. The anisotropic vortex activation energy in the liquid state has been found to follow the same in-plane periodicity as the irreversibility line. Our results demonstrate that a set of multidirectional linear vortex pinning centers leading to multiple in-plane Bose glass-like transitions can coexist.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC; MEC; Generalitat de Catalunya PhD Fellowship
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1006268
- Report Number(s):
- ANL/MSD/JA-68952
- Journal Information:
- Supercond. Sci. Technol., Journal Name: Supercond. Sci. Technol. Journal Issue: Feb. 2008 Vol. 21; ISSN 0953-2048
- Country of Publication:
- United States
- Language:
- ENGLISH
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