Critical behavior associated with transient dynamics near the depinning transition
S Okuma, A Motohashi - New Journal of Physics, 2012 - iopscience.iop.org
We study the general phenomenon of plastic depinning using a vortex system confined in a
Corbino-disc superconductor. For an ordered initial vortex configuration, the vortices driven …
Corbino-disc superconductor. For an ordered initial vortex configuration, the vortices driven …
Irreversibility and dislocation in periodically sheared vortex matter
S Okuma, Y Kawamura, Y Tsugawa - Journal of the Physical Society …, 2012 - journals.jps.jp
Recently, we have provided evidence for a reversible-to-irreversible flow transition, as well
as a depinning transition, in periodically sheared vortices in a Corbino-disk (CD) …
as a depinning transition, in periodically sheared vortices in a Corbino-disk (CD) …
Suppression of the melting line in a weakly disordered flux-line system
GI Menon, G Ravikumar, MJ Higgins… - Physical Review B …, 2012 - APS
An analytic formula describing the suppression of the equilibrium melting line by quenched
point pinning disorder is compared to data from ac susceptibility and magnetization …
point pinning disorder is compared to data from ac susceptibility and magnetization …