High-pressure phase diagrams of FeSe_1-xTe_x: correlation between suppressed nematicity and enhanced superconductivity.

ABSTRACT: The interplay among magnetism, electronic nematicity, and superconductivity is the key issue in strongly correlated materials including iron-based, cuprate, and heavy-fermion superconductors. Magnetic fluctuations have been widely discussed as a pairing mechanism of unconventional superconductivity, but recent theory predicts that quantum fluctuations of nematic order may also promote high-temperature superconductivity. This has been studied in FeSe_1-xS_x superconductors exhibiting nonmagnetic nematic and pressure-induced antiferromagnetic orders, but its abrupt suppression of superconductivity at the nematic end point leaves the nematic-fluctuation driven superconductivity unconfirmed. Here we report on systematic studies of high-pressure phase diagrams up to 8 GPa in

SUBMITTER: Mukasa K 

PROVIDER: S-EPMC7810696 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature