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

In order to enhance the critical current density ($J_c$) of superconductors,introduction of columnar defects (CDs) through swift-particle irradiation iseffective. By dispersing the direction of CDs (splayed CDs), not only furtherenhancement of $J_c$ has been confirmed but also an anomalous peak effect (APE)in $J_c$ at a certain magnetic field determined by the irradiation dose wasobserved. It has been proposed that the APE arises from the suppression of kinkmotion and/or the effects of vortex entanglement in systems with splayed CDs.In this study, we measure $J_c$ properties of optimally K-doped Ba-122-typeiron-based superconductor Ba$_{0.6}$K$_{0.4}$Fe$_{2}$As$_{2}$ single crystalswith splayed CDs that are introduced asymmetrically with respect to the$c$-axis by irradiating 2.6 GeV U ions. We discuss the significance of theaverage direction of splayed CDs to the APE. We also discuss the relationshipbetween the APE and the entanglement of vortices.

Effects of asymmetric splayed columnar defects on the anomalous peak effect in Ba$_{0.6}$K$_{0.4}$Fe$_{2}$As$_{2}$