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Penetration Depth Measurements of YBa2Cu3O7-δ at 4 MHz

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Measurements were made of the penetration depth of bulk and powder samples of YBa2Cu3O7-δ. The samples were placed in an inductor which was part of the resonant circuit of a 4 MHz tunnel diode oscillator. The oscillator was stable to at least 1 part in 106 at 77 K. Changes in the sample susceptibility were easily detected by changes in the oscillator frequency. Analysis of the smallest powders fabricated gave a value of the measured penetration depth λmea = 0.23 μm. The measurement methodology is quantitative and the value of Xmea is believed to be an upper bound of the true penetration depth.

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References

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Authors and Affiliations

  1. Brookhaven National Laboratory, Upton, NY, 11973, USA

    H. Wiesmann, R. R. Corderman, A. R. Moodenbaugh, M. W. Ruckman & Myron Strongin

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  1. H. Wiesmann
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  2. R. R. Corderman
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  3. A. R. Moodenbaugh
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  4. M. W. Ruckman
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  5. Myron Strongin
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Wiesmann, H., Corderman, R.R., Moodenbaugh, A.R. et al. Penetration Depth Measurements of YBa2Cu3O7-δ at 4 MHz. MRS Online Proceedings Library 99, 387–390 (1987). https://doi.org/10.1557/PROC-99-387

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  • DOI: https://doi.org/10.1557/PROC-99-387

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