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/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

La3Co4Sn13 is a superconducting material with transition temperature at Tc =2.70 K, which presents a superlattice structural transition at T* ~ 150 K, acommon feature for this class of compounds. However, for this material, it isnot clear that at T* the lattice distortions arise from a charge density wave(CDW) or from a distinct microscopic origin. Interestingly, it has beensuggested in isostructural non-magnetic intermetallic compounds that T* can besuppressed to zero temperature, by combining chemical and external pressure,and a quantum critical point is argued to be observed near these criticaldoping/pressure. Our study shows that application of pressure onsingle-crystalline La3Co4Sn13 enhances Tc and decreases T*. We observe thermalhysteresis loops for cooling/heating cycles around T* for P > 0.6 GPa, inelectrical resistivity measurements, which are not seen in x-ray diffractiondata. The hysteresis in electrical measurements may be due to the pinning ofthe CDW phase to impurities/defects, while the superlattice structuraltransition maintains its ambient pressure second-order transition nature underpressure. From our experiments we estimate that T* vanishes at around 5.5 GPa,though no quantum critical behavior is observed up to 2.53 GPa.

Pressure effects on the structural and superconducting transitions in La3Co4Sn13