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

High transition temperature (high-Tc) superconductivity is associated withlayered crystal structures. This work considers superconductivity in ultra-thincrystals (of thickness equal to the transverse structural periodicity distanced for one formula unit) of thirty-two cuprate, ruthenate, rutheno-cuprate, ironpnictide, organic, and transuranic compounds, wherein intrinsic optimal(highest) transition temperatures Tc0 (10 - 150 K) are assumed. Sheettransition temperatures Tcs = {\alpha}Tc0, where {\alpha} < 1, are determinedfrom Kosterlitz-Thouless (KT) theory of phase transitions in two-dimensionalsuperconductors. Calculation of {\alpha} involves superconducting sheet carrierdensities NS derived theoretically from crystal structure, ionic valences, andknown doping, a two-fluid model for the temperature dependence of thesuperconducting magnetic penetration depth, and experimental data on KTtransitions; {\alpha} is on average 0.83 (varying with standard deviation0.11). Experiments on several thin crystal structures of thickness dFapproaching d are shown to be consistent with calculations of Tc0 frommicroscopic superconductivity theory and with Tcs from KT theory, where thepresence of disorder is also taken into account; careful analyses of these thinfilm studies indicate a minimum thickness dF \approx d for superconductivity

High-Tc Superconductivity in Ultra-thin Crystals: Implications for Microscopic Theory