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Alternating-current magnetic measurements on superconductors using two-channel dynamic analyser.

Author(s) : FABBRICATORE P., FARINON S., GEMME G., MUSENICH R., PARODI R., ZHANG B.

Type of article: Article

Summary

The alternating-current susceptibility is the most used measurement for characterizing superconducting materials and is commonly performed using a two-phase lock-in amplifier. The article describes a different method to carry out this measurement, employing a two-channel dynamic analyser. This instrument also allows the authors to measure further quantities, such as higher harmonics of the alternating-current susceptibility, the so-called wide-band susceptibility and the magnetization loops. A remarkable feature of the dynamic analyser is its wide frequency range, from 244 microhertz to 102 kilohertz, allowing simple, comprehensive and reliable characterization of superconductors.

Details

  • Original title: Alternating-current magnetic measurements on superconductors using two-channel dynamic analyser.
  • Record ID : 1994-3370
  • Languages: English
  • Source: Cryogenics - vol. 33 - n. 12
  • Publication date: 1993/12

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