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Evaluation of the Magnetic Properties of Nd-Based Superconductors

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Part of the book series: NATO ASI Series ((ASHT,volume 26))

Abstract

The magnetic properties of Nd-Ba-Cu-O superconducting compounds, melt-grown in reduced oxygen atmosphere, were investigated using a SQUID magnetometer. A critical temperature above 93 K was derived from magnetic susceptibility χ measurements. Magnetization cycles performed with the external magnetic field applied both parallel and perpendicular to the sample c axis evidenced a strong anisotropic behaviour of the material. An anomalous peak (> 20 kA/cm2 at 77 K) is present in the intermedium field region (1-2 T) of the magnetization critical current density Jcm. From the magnetic characterization other important parameters, such as the critical field Hirr, the irreversible field Hc1 and the residual field B res,were studied in the temperature range interesting for applications.

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© 1997 Springer Science+Business Media Dordrecht

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Ottoboni, V., Frangi, F., Zannella, S. (1997). Evaluation of the Magnetic Properties of Nd-Based Superconductors. In: Kossowsky, R., Jelinek, M., Novak, J. (eds) Physics and Materials Science of High Temperature Superconductors, IV. NATO ASI Series, vol 26. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5732-2_21

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  • DOI: https://doi.org/10.1007/978-94-011-5732-2_21

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-6417-0

  • Online ISBN: 978-94-011-5732-2

  • eBook Packages: Springer Book Archive

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