Extended Magnetic Dome Induced by Low Pressures in Superconducting FeSe1-xSx

Holenstein, S.; Stahl, J.; Shermadini, Z.; Simutis, G.; Grinenko, V; Chareev, D. A.; Khasanov, R.; Orain, J-C; Amato, A.; Klauss, H-H; Morenzoni, E.; Johrendt, D. und Luetkens, H. (2019): Extended Magnetic Dome Induced by Low Pressures in Superconducting FeSe1-xSx. In: Physical Review Letters, Vol. 123, No. 14, 147001

Abstract

We report muon spin rotation and magnetization measurements under pressure on Fe1+delta Se1-xSx with x approximate to 0.11. Above p approximate to 0.6 GPa we find a microscopic coexistence of superconductivity with an extended dome of long range magnetic order that spans a pressure range between previously reported separated magnetic phases. The magnetism initially competes on an atomic scale with the coexisting superconductivity leading to a local maximum and minimum of the superconducting T-c(p). The maximum of T-c corresponds to the onset of magnetism while the minimum coincides with the pressure of strongest competition. A shift of the maximum of T-c(p) for a series of single crystals with x up to 0.14 roughly extrapolates to a putative magnetic and superconducting state at ambient pressure for x >= 0.2.

• Item Type: Journal article
• Faculties: Chemistry and Pharmacy > Department of Chemistry
• Subjects: 500 Science > 540 Chemistry
• ISSN: 0031-9007
• Language: English