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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Transition metal disulfides 4$H_{b}$-Ta(S, Se)$_{2}$ with naturalheterostructure of 1${T}$- and 1${H}$-Ta(S, Se)$_{2}$ layers have became thefocus of correlated materials their unique combinations of Mott physics andpossible topological superconductivity. In this work, we study the uppercritical fields $\mu_{0}H_{c2}$ of 4$H_{b}$-TaS$_{2}$ and4$H_{b}$-TaS$_{1.99}$Se$_{0.01}$ single crystals systematically. Transportmeasurements up to 35 T show that both of ${ab}$-plane and ${c}$-axis uppercritical fields ($\mu_{0}H_{c2,ab}$ and $\mu_{0}H_{c2,c}$) for4$H_{b}$-TaS$_{2}$ and 4$H_{b}$-TaS$_{1.99}$Se$_{0.01}$ exhibit a lineartemperature dependent behavior down to 0.3 K, suggesting the three-dimensionalsuperconductivity with dominant orbital depairing mechanism in bulk4$H_{b}$-Ta(S, Se)$_{2}$. However, the zero-temperature $\mu_{0}H_{c2,ab}$(0)for both crystals are far beyond the Pauli paramagnetic limit$\mu_{0}H{\rm_{P}}$. It could be explained by the effects of spin-momentumlocking in 1$H$-Ta(S, Se)$_{2}$ layers with local inversion symmetry broken andthe relatively weak intersublattice interaction between 1$H$ layers due to theexistence of 1$T$ layers.

Extreme orbital $ab$-plane upper critical fields far beyond Pauli limit in 4$H_{b}$-Ta(S, Se)$_{2}$ bulk crystals