Stabilization of High-T sub( c) Phase of BiS sub( 2)-Based Superconductor LaO sub( 0.5)F sub( 0.5)BiS sub( 2) Using High-Pressure Synthesis

Stabilization of High-T sub( c) Phase of BiS sub( 2)-Based Superconductor LaO sub( 0.5)F sub( 0.5)BiS sub( 2) Using High-Pressure Synthesis

High-quality polycrystalline samples of ... were obtained using high-pressure synthesis technique. The ... sample prepared by heating at 700 ...C under 2 GPa showed superconductivity with superconducting transition temperatures (...) of ... and ... in the electrical resistivity measurements and ......

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Veröffentlicht in:Journal of the Physical Society of Japan 2014-05, Vol.83 (5), p.1-1
Hauptverfasser: Mizuguchi, Yoshikazu, Hiroi, Takafumi, Kajitani, Joe, Takatsu, Hiroshi, Kadowaki, Hiroaki, Miura, Osuke
Format: Artikel
Sprache:eng
Schlagworte:
Diffraction
Electrical resistivity
Lattice parameters
Magnetic permeability
Superconductivity
Synthesis
Transition temperature
X-rays
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Zusammenfassung:High-quality polycrystalline samples of ... were obtained using high-pressure synthesis technique. The ... sample prepared by heating at 700 ...C under 2 GPa showed superconductivity with superconducting transition temperatures (...) of ... and ... in the electrical resistivity measurements and ... and ... in the magnetic susceptibility measurements, which are obviously higher than those of the ... polycrystalline samples obtained using conventional solid-state reaction. It was found that the high-... phase can be stabilized under high pressure and relatively-low annealing temperature. X-ray diffraction analysis revealed that the high-... phase possessed a small ratio of lattice constants of a and c, c/a. (ProQuest: ... denotes formulae/symbols omitted.)
ISSN:0031-9015
1347-4073