TY - JOUR
T1 - Superconductivity at 112-117 K in HgBa2CaCu2O6+δ
AU - Meng, R. L.
AU - Sun, Y. Y.
AU - Kulik, J.
AU - Huang, Z. J.
AU - Chen, F.
AU - Xue, Y. Y.
AU - Chu, C. W.
N1 - Funding Information:
This work is supported in part by USAFOSR F49620-93-1-0310, NSF Grant No. DMR 91-22043, DARPA Grant No. MDA 972-88-G-002, the Texas Center for Superconductivity at the University of Houston, and the T.L.L. Temple Foundation. Technical assistance from H. Zhang and L. Beauvais is also appreciated.
PY - 1993/9/10
Y1 - 1993/9/10
N2 - The superconducting phase HgBa2CaCu2O6+δ with a sharp transition has been prepared and studied. Through studies of X-ray diffraction patterns, transmission electron microscopy, magnetization, and resistivity, we found that it has a tetragonal symmetry with lattice parameters a=3.862(1) A ̊ and c=12.707(5) A ̊, with a main superconducting transition at ≈ 112 K prior to oxygenation and ≈ 117 K after prolonged oxygenation, and has a rather low irreversibility line. No superstructures of the type previously reported by Schilling et al. and Gao et al. in the >130 K phase were detected in these samples.
AB - The superconducting phase HgBa2CaCu2O6+δ with a sharp transition has been prepared and studied. Through studies of X-ray diffraction patterns, transmission electron microscopy, magnetization, and resistivity, we found that it has a tetragonal symmetry with lattice parameters a=3.862(1) A ̊ and c=12.707(5) A ̊, with a main superconducting transition at ≈ 112 K prior to oxygenation and ≈ 117 K after prolonged oxygenation, and has a rather low irreversibility line. No superstructures of the type previously reported by Schilling et al. and Gao et al. in the >130 K phase were detected in these samples.
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U2 - 10.1016/0921-4534(93)90831-A
DO - 10.1016/0921-4534(93)90831-A
M3 - Article
AN - SCOPUS:0027656368
SN - 0921-4534
VL - 214
SP - 307
EP - 312
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - 3-4
ER -