English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Phase transitions of a flux lattice in layered superconductors with magneticfield perpendicular to the layers and in presence of disorder are studied. Wefind that disorder generates a random Josephson coupling between layers whichleads to a Josephson glass (JG) phase at low temperatures; vanishing of the JGorder identifies a depinning transition. We also find that disorder and thermalfluctuations lead to layer decoupling where the renormalized Josephson couplingvanishes. Near decoupling an anharmonic regime is found, where usual elasticityand the resulting Bragg glass are not valid. The depinning line crosses thedecoupling line at a multicritical point, resulting in three transition linesand a crossover line. The phase diagram is consistent with the unusual data onBi2Sr2CaCu2O8 such as the "second peak" and depinning transitions. TheJosephson plasma frequency is evaluated in the various phases.Comment: 24 pages, 3 figures. Recent experimental data is discussed in section  VI. Companion to preceding article cond-mat/040501

Decoupling and depinning of flux lattices in disordered layered superconductors