• DocumentCode
    1009566
  • Title

    A wideband device for measurement of the magnetic properties of materials

  • Author

    Avdeev, L.Z. ; Snigirev, O.V. ; Khanin, V.V.

  • Author_Institution
    Moscow University, Moscow, USSR
  • Volume
    21
  • Issue
    2
  • fYear
    1985
  • fDate
    3/1/1985 12:00:00 AM
  • Firstpage
    914
  • Lastpage
    915
  • Abstract
    We have designed and tested the first version of the wideband SQUID-based universal instrument intended to study magnetic properties of matter within the frequency range 0-1 KHz, in the magnetic fields up to 0.15 T and the temperature range 4.2 - 330 K with the available sample volume ∼ 0.5 cm3. In the present device the spectral density of noise reduced to magnetic moment of the sample was close to 10-10Axm2/Hz1/2at frequencies higher than 1 Hz, for the applied field 0.05 T and sample temperature 170 K. An analysis of the noise spectra for various applied magnetic fields has enabled us to indicate a probable main source of this noise and to outline ways to reduce the total noise, hopefully to the SQUID-determined values.
  • Keywords
    Josephson device measurement applications; Magnetic measurements; Frequency; Instruments; Magnetic field measurement; Magnetic materials; Magnetic noise; Magnetic properties; Noise reduction; Temperature distribution; Testing; Wideband;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1985.1063757
  • Filename
    1063757
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1009566