Superconductivity and magnetic order in TbSr2Cu2.69Mo0.31O7

S. Y. Wu, R. Y. Lin, C. Y. Cheng, W. H. Li, K. C. Lee, H. D. Yang

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AC magnetic susceptibility, measured with weak probing fields, has been carried out to study the intrinsic magnetic properties of polycrystalline TbSr2Cu2.69Mo0.31O7. Superconductivity occurring below 38 K and antiferromagnetic order of the Tb spins with TN = 5.4 K were clearly evident in both the temperature dependence of the in-phase and the out-of-phase components of the AC susceptibility. The diamagnetic responses that signify the occurrence of superconductivity were found to be extremely sensitive to the strength of the probing field used. Almost perfect diamagnetic responses were observed under a probing field of rms strength HAC = 0.05 Oe. Increasing HAC to 1 Oe suppresses 50% of the diamagnetic responses. Below 5.4 K, as the Tb spins order, superconductivity and antiferromagnetism coexist.

Original languageEnglish
Pages (from-to)116-118
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Issue number1-3
StatePublished - Feb 2000
EventProceedings of the 1999 International Symposium on Advanced Magnetic Technologies (ISAMT'99) - Taipei, Taiwan
Duration: 24 May 199925 May 1999


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