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Hydrostatic pressure effects on the superconductivity of La1.2−x Eu x Mo6S8 pseudoternary compounds

Hydrostatic pressure effects on the superconductivity of La1.2−x Eu x Mo6S8 pseudoternary compounds The effect of hydrostatic pressure on the superconductivity of La1.2−x Eu x Mo6S8 pseudoternary compounds was studied by means of low-frequency ac and dc magnetic susceptibility measurements up to 20 kbar. The superconducting transition temperatureT c at ambient pressure is a weak function of Eu concentrationx for 0≲x≲0.2, and then decreases smoothly withx forx>0.2 until superconductivity is completely suppressed forx≥0.95. Pressure was found to decreaseT c in the La-rich compounds and to increaseT c in the Eu-rich compounds. Pressure also induces superconductivity in compounds withx>0.95 that are not superconducting at ambient pressure. A La0.2Eu1.0Mo6S8 compound revealed a sizeable Meissner effect for pressures larger than 7 kbar. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Low Temperature Physics Springer Journals

Hydrostatic pressure effects on the superconductivity of La1.2−x Eu x Mo6S8 pseudoternary compounds

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References (22)

Publisher
Springer Journals
Copyright
Copyright
Subject
Physics; Condensed Matter Physics; Characterization and Evaluation of Materials; Magnetism, Magnetic Materials
ISSN
0022-2291
eISSN
1573-7357
DOI
10.1007/BF00681902
Publisher site
See Article on Publisher Site

Abstract

The effect of hydrostatic pressure on the superconductivity of La1.2−x Eu x Mo6S8 pseudoternary compounds was studied by means of low-frequency ac and dc magnetic susceptibility measurements up to 20 kbar. The superconducting transition temperatureT c at ambient pressure is a weak function of Eu concentrationx for 0≲x≲0.2, and then decreases smoothly withx forx>0.2 until superconductivity is completely suppressed forx≥0.95. Pressure was found to decreaseT c in the La-rich compounds and to increaseT c in the Eu-rich compounds. Pressure also induces superconductivity in compounds withx>0.95 that are not superconducting at ambient pressure. A La0.2Eu1.0Mo6S8 compound revealed a sizeable Meissner effect for pressures larger than 7 kbar.

Journal

Journal of Low Temperature PhysicsSpringer Journals

Published: Nov 6, 2004

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