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

The path from the charge density wave antiferromagnet NdNiC$_2$ to anoncentrosymmetric superconductor LaNiC$_2$ has been studied by gradualreplacement of Nd by La ions. The evolution of physical properties has beenexplored by structural, magnetic, transport, magnetoresistance and specificheat measurements. With the substitution of La for Nd, the Peierls temperatureis gradually suppressed, which falls within the BCS mean-field relation forchemical pressure with a critical concentration of $x_c$ = 0.38. As long ascharge density wave is maintained, the antiferromagnetic ground state remainsrobust against doping and despite of a N\'eel temperature reduction shows arapid and sharp magnetic transition. Once the CDW is completely suppressed,intermediate compounds of the Nd$_{1-x}$La$_x$NiC$_2$ series reveal symptoms ofa gradual softening of the features associated with AFM transition and increaseof the spin disorder. Immediately after the antiferromagnetic transition isdepressed to zero temperature, the further incorporation of La ions results inthe emergence of superconductivity. This crossover in theNd$_{1-x}$La$_x$NiC$_2$ is discussed in the terms of the possible quantumcritical point.

Crossover from charge density wave stabilized antiferromagnetism to superconductivity in Nd$_{1-x}$La$_x$NiC$_2$ compounds