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

Prior to the superconducting transition at Tc = 2.3 K, Mo3Sb7 undergoes asymmetry-lowering, cubic-to-tetragonal structural transition at Ts = 53 K. Wehave monitored the pressure dependence of these two transitions by measuringthe resistivity of Mo3Sb7 single crystals under various hydrostatic pressuresup to 15 GPa. The application of external pressure enhances Tc but suppressesTs until Pc ~ 10 GPa, above which a pressure-induced first order structuraltransition takes place and is manifested by the phase coexistence in thepressure range 8 < P < 12 GPa. The cubic phase above 12 GPa is also found to besuperconducting with a higher Tc =6 K that decreases slightly with furtherincreasing pressure. The variations with pressure of Tc and Ts satisfy theBilbro-McMillan equation, i.e. Tc^nTs^(1-n) = constant, thus suggesting thecompetition of superconductivity with the structural transition that has beenproposed to be accompanied with a spin-gap formation at Ts. This scenario issupported by our first-principles calculations which imply the plausibleimportance of magnetism that competes with the superconductivity in Mo3Sb7.

Competition of superconductivity with the structural transition in Mo3Sb7