Abstract
We have synthesized an iodine-intercalated superconductor I xBa2Ca3Cu4O8(O,F) 2. The intercalation was performed by heating a host compound of Ba2Ca3Cu4O8(O,F)2 with I2 in an evacuated quarts tube. The Tc significantly increased from 82 K to 121 K by the iodine intercalation. The Tc is the highest in four CuO2 layered cuprates excluding Hg- and Tl-system. The iodine will be intercalated between Ba-(O,F) layers. Composition analysis indicated that nearly stage-I iodine intercalation (about χ 0.9) was realized. The iodine atoms expand the spacing between the double Ba-(O,F) layers by about 4.0 Å which is comparable to the value of 3.5 Å for the iodine intercalation to Bi-system. © 2009 IOP Publishing Ltd.
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CITATION STYLE
Iyo, A., Shirage, M., Shivagan, D., Tanaka, Y., Kito, H., Kodama, Y., … Watanabe, T. (2009). Iodine intercalation into Ba2Ca3Cu4O 8(O,F)2 multilayered superconductors. In Journal of Physics: Conference Series (Vol. 150). Institute of Physics Publishing. https://doi.org/10.1088/1742-6596/150/5/052082
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