Non-resonant RF and microwave response: A novel technique for the characterization of superconducting materials | Zendy

S. V. Bhat | Zendy

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Non-resonant RF and microwave response: A novel technique for the characterization of superconducting materials

Author(s) -

S. V. Bhat

Publication year - 1994

Publication title -

bulletin of materials science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.35

H-Index - 72

eISSN - 0973-7669

pISSN - 0250-4707

DOI - 10.1007/bf02747226

Subject(s) - superconductivity , microwave , materials science , characterization (materials science) , spectrometer , condensed matter physics , resonance (particle physics) , absorption (acoustics) , phase (matter) , paramagnetism , magnetic field , superconducting magnet , nuclear magnetic resonance , atomic physics , physics , nanotechnology , optics , quantum mechanics , composite material

When examined using continuous wave electron paramagnetic resonance and nuclear magnetic resonance spectrometers, the highT c superconductors give rise to intense, low field, ‘non-resonant’ absorption signals in the superconducting state. This phenomenon can be used as a highly sensitive, contactless technique for the detection and characterization of superconductivity even in samples containing only minute amounts of the superconducting phase. Further, it can also be applied to the determination of material parameters of interest such asJ c andH c2 in addition to being a powerful way of distinguishing between weak-link superconductivity and bulk superconductivity. The details of these aspects are discussed.

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