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

The intergranular pinning potential U and the critical current density Jc forpolycrystalline RuSr2Gd1.5Ce0.5Cu2O10 ruthenate-cuprate were determined at zeromagnetic field and temperature through the frequency shift in the peak of theimaginary part of the ac magnetic susceptibility, X". A critical state model,including a flux creep term, was found to accurately describe the X" behavior.The obtained values, U(H=0,T=0) ~ 30 meV and Jc(H=0,T=0) ~ 110 A/cm^2 are abouttwo orders of magnitude and four times lower, respectively, in comparison withthe high-Tc cuprate YBa2Cu3O7. These results were ascribed to the effects ofthe Ru magnetization on the connectivity of the weak-linked network, giving anintrinsic local field at the junctions of ~ 15 Oe. The impact on Jc is lessintense because of the small average grain radius (~1 micrometer). Theintragranular London penetration length at T = 0, [lambda_L(0) ~ 2 micrometer],was derived using a Kim-type expression for the field dependence of Jc. Apossible source for the large value of lambda_L in comparison to the high-Tccuprates is suggested to come from a strong intragrain granularity, due tostructural domains of coherent rotated RuO6 octahedra separated by antiphaseboundaries.Comment: 5 pages, 3 figures. To appear in Physical Review

physical review. b, condensed matter and materials physics

Intergranular pinning potential and critical current in the magnetic superconductor<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>Ru</mml:mi><mml:msub><mml:mi>Sr</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Gd</mml:mi><mml:mn>1.5</mml:mn></mml:msub><mml:msub><mml:mi>Ce</mml:mi><mml:mn>0.5</mml:mn></mml:msub><mml:msub><mml:mi>Cu</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>10</mml:mn></mml:…

Intergranular pinning potential and critical current in the magnetic superconductorRuSr2Gd1.5Ce0.5Cu2O10