THRESHOLD CHARACTERISTICS OF MUTUALLY COUPLED SQUIDS.
C.C. Chi, L. Krusin-Elbaum, et al.
International Conference on Low Temperature Physics (LT) 1983
We present evidence for forced topological entanglement of line-like vortices in the liquid regime of YBa2Cu3O7−δ with columnar defects. By splaying the defects within a fixed plane (in-fan) we create a c^– axis phase coherent vortex (string) structure which correlates with anisotropic dissipation. The high-field vortex motion is “easy” in fan and “hard” across fan in crystals–a signature of forced entanglement by a small angle splay. The high-field anisotropy is surprisingly reversed in thin films, where forced entanglement is absent. © 1997 American Physical Society.
C.C. Chi, L. Krusin-Elbaum, et al.
International Conference on Low Temperature Physics (LT) 1983
T. Shibauchi, L. Krusin-Elbaum, et al.
Physical Review Letters
Ku N. Chen, L. Krusin-Elbaum, et al.
IEEE Electron Device Letters
L. Krusin-Elbaum, T. Shibauchi, et al.
Journal of Magnetism and Magnetic Materials