Superconductivity in new oxyanion superconductors: TlSr4Cu2Oz(SO4)1-x(CrO4)x
H. K. Lee
AIP Advances · 2018
doi:10.1063/1.5049855 (opens in a new tab)
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Abstract
TlSr4Cu2Oz(SO4)1-x(CrO4)x (x = 0 – 1.0) polycrystalline samples were prepared by using a solid state reaction technique to investigate the effect of Cr substitution for S on the phase formation and the superconducting properties of the recently isolated superconducting compound TlSr4Cu2Oz(SO4). X-ray powder diffraction measurements showed that almost-single phase samples with tetragonal (P4/mmm) structure were obtained in a range of 0 ≤ x ≤ 1.0. The magnetic transition temperatures were 74 K, 73K, and 76 K for the x = 0, 0.5, and 1.0 samples, respectively. The observed superconductivity was of bulk nature.
Abstract licence: CC BY
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